diff --git a/.gitattributes b/.gitattributes
index 1100936..7a88265 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,4 +1,5 @@
 * text=auto eol=lf
+*.bat text eol=crlf
 
 # Use Git LFS for binary files
 *.wav filter=lfs diff=lfs merge=lfs -text
diff --git a/.gitignore b/.gitignore
index 3b6a86f..61a34eb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
+.gradle/
 .vs/
 build/
-*.user
\ No newline at end of file
+target/
+*.user
+*.profraw
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..943f0cb
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..f398c33
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100644
index 0000000..65dcd68
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,244 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..93e3f59
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/rhubarb/Cargo.lock b/rhubarb/Cargo.lock
new file mode 100644
index 0000000..71c0367
--- /dev/null
+++ b/rhubarb/Cargo.lock
@@ -0,0 +1,329 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "assert_matches"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b34d609dfbaf33d6889b2b7106d3ca345eacad44200913df5ba02bfd31d2ba9"
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "dyn-clone"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9b0705efd4599c15a38151f4721f7bc388306f61084d3bfd50bd07fbca5cb60"
+
+[[package]]
+name = "futures"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38390104763dc37a5145a53c29c63c1290b5d316d6086ec32c293f6736051bb0"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52ba265a92256105f45b719605a571ffe2d1f0fea3807304b522c1d778f79eed"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04909a7a7e4633ae6c4a9ab280aeb86da1236243a77b694a49eacd659a4bd3ac"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7acc85df6714c176ab5edf386123fafe217be88c0840ec11f199441134a074e2"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00f5fb52a06bdcadeb54e8d3671f8888a39697dcb0b81b23b55174030427f4eb"
+
+[[package]]
+name = "futures-macro"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bdfb8ce053d86b91919aad980c220b1fb8401a9394410e1c289ed7e66b61835d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-sink"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39c15cf1a4aa79df40f1bb462fb39676d0ad9e366c2a33b590d7c66f4f81fcf9"
+
+[[package]]
+name = "futures-task"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ffb393ac5d9a6eaa9d3fdf37ae2776656b706e200c8e16b1bdb227f5198e6ea"
+
+[[package]]
+name = "futures-timer"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
+
+[[package]]
+name = "futures-util"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "197676987abd2f9cadff84926f410af1c183608d36641465df73ae8211dc65d6"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
+ "futures-task",
+ "memchr",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+]
+
+[[package]]
+name = "log"
+version = "0.4.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "memchr"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+
+[[package]]
+name = "num"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43db66d1170d347f9a065114077f7dccb00c1b9478c89384490a3425279a4606"
+dependencies = [
+ "num-bigint",
+ "num-complex",
+ "num-integer",
+ "num-iter",
+ "num-rational",
+ "num-traits",
+]
+
+[[package]]
+name = "num-bigint"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f93ab6289c7b344a8a9f60f88d80aa20032336fe78da341afc91c8a2341fc75f"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-complex"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ae39348c8bc5fbd7f40c727a9925f03517afd2ab27d46702108b6a7e5414c19"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-integer"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
+dependencies = [
+ "autocfg",
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-rational"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
+dependencies = [
+ "autocfg",
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "pin-project-lite"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57a8eca9f9c4ffde41714334dee777596264c7825420f521abc92b5b5deb63a5"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rhubarb-audio"
+version = "0.1.0"
+dependencies = [
+ "assert_matches",
+ "dyn-clone",
+ "log",
+ "rstest",
+ "speculoos",
+]
+
+[[package]]
+name = "rstest"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e9c9dc66cc29792b663ffb5269be669f1613664e69ad56441fdb895c2347b930"
+dependencies = [
+ "futures",
+ "futures-timer",
+ "rstest_macros",
+ "rustc_version",
+]
+
+[[package]]
+name = "rstest_macros"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5015e68a0685a95ade3eee617ff7101ab6a3fc689203101ca16ebc16f2b89c66"
+dependencies = [
+ "cfg-if",
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "syn",
+]
+
+[[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver",
+]
+
+[[package]]
+name = "semver"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58bc9567378fc7690d6b2addae4e60ac2eeea07becb2c64b9f218b53865cba2a"
+
+[[package]]
+name = "slab"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4614a76b2a8be0058caa9dbbaf66d988527d86d003c11a94fbd335d7661edcef"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "speculoos"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8f81684bbc3005f83b5c0a9e03eb52c8257b15370d62dcedf548964d5bfae2d"
+dependencies = [
+ "num",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.107"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
diff --git a/rhubarb/Cargo.toml b/rhubarb/Cargo.toml
new file mode 100644
index 0000000..96a0082
--- /dev/null
+++ b/rhubarb/Cargo.toml
@@ -0,0 +1,4 @@
+[workspace]
+members = [
+    "rhubarb-audio",
+]
diff --git a/rhubarb/rhubarb-audio/Cargo.toml b/rhubarb/rhubarb-audio/Cargo.toml
new file mode 100644
index 0000000..ec5cd42
--- /dev/null
+++ b/rhubarb/rhubarb-audio/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "rhubarb-audio"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+dyn-clone = "1.0.10"
+log = "0.4.17"
+
+[dev-dependencies]
+assert_matches = "1.5.0"
+rstest = "0.15.0"
+speculoos = "0.10.0"
diff --git a/rhubarb/rhubarb-audio/build.gradle.kts b/rhubarb/rhubarb-audio/build.gradle.kts
new file mode 100644
index 0000000..d45f03a
--- /dev/null
+++ b/rhubarb/rhubarb-audio/build.gradle.kts
@@ -0,0 +1,29 @@
+tasks.register("testCoverage") {
+    group = "Rhubarb"
+    doLast {
+        val environmentVariables = mapOf(
+            "RUSTFLAGS" to "-Cinstrument-coverage",
+            "LLVM_PROFILE_FILE" to File(project.projectDir, "rhubarb-audio-%p-%m.profraw").path,
+        )
+        project.exec {
+            commandLine = listOf("cargo", "build")
+            environment(environmentVariables)
+        }
+        project.exec {
+            commandLine = listOf("cargo", "test")
+            environment(environmentVariables)
+        }
+        project.exec {
+            commandLine = listOf(
+                "grcov",
+                "--source-dir", ".",
+                "--binary-path", "../target/debug/deps",
+                "--output-type", "html",
+                "--branch", "--ignore-not-existing",
+                "--output-path", "../target/debug/coverage",
+                ".",
+            )
+        }
+        project.delete(fileTree(project.projectDir) { include("*.profraw") })
+    }
+}
diff --git a/rhubarb/rhubarb-audio/src/audio_clip.rs b/rhubarb/rhubarb-audio/src/audio_clip.rs
new file mode 100644
index 0000000..e73170d
--- /dev/null
+++ b/rhubarb/rhubarb-audio/src/audio_clip.rs
@@ -0,0 +1,179 @@
+use crate::audio_error::AudioError;
+use dyn_clone::DynClone;
+use std::fmt::Debug;
+use std::time::Duration;
+
+const NANOS_PER_SEC: u32 = 1_000_000_000;
+
+/// An audio clip containing monaural sampled audio.
+///
+/// Structs implementing this trait may read the audio data from disk, keep it in memory, or
+/// generate it on the fly.
+pub trait AudioClip: DynClone + Debug {
+    /// The number of audio frames in the audio clip.
+    fn len(&self) -> u64;
+
+    /// The sampling rate in frames per second.
+    fn sampling_rate(&self) -> u32;
+
+    /// Creates a new sample reader for reading from this audio clip.
+    fn create_sample_reader(&self) -> Result<Box<dyn SampleReader>, AudioError>;
+
+    /// Returns the duration of this audio clip.
+    fn duration(&self) -> Duration {
+        Duration::from_nanos(
+            (u128::from(self.len()) * u128::from(NANOS_PER_SEC) / u128::from(self.sampling_rate()))
+                as u64,
+        )
+    }
+
+    /// Indicates whether this audio clip is empty, that is, contains zero samples.
+    fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+}
+
+/// Allows seeking within an [AudioClip] and reading its samples.
+pub trait SampleReader: Debug {
+    /// The number of audio frames in the associated audio clip.
+    fn len(&self) -> u64;
+
+    /// The current read position in frames.
+    fn position(&self) -> u64;
+
+    /// Seeks to the specified position in frames.
+    ///
+    /// *Performance note:* Implementers of source sample readers should make sure that this method
+    /// doesn't perform any time-consuming work such as reading from the disk. This allows
+    /// downstream sample readers to unconditionally call `seek` upstream without worrying about
+    /// performance.
+    fn set_position(&mut self, position: u64);
+
+    /// Attempts to read samples until the given buffer is full.
+    /// Errors if there are not enough samples left to fill the buffer.
+    fn read(&mut self, buffer: &mut [Sample]) -> Result<(), AudioError>;
+
+    /// Indicates whether the associated audio clip is empty, that is, contains zero samples.
+    fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
+    /// The number of remaining samples before the end of the audio clip is reached.
+    fn remainder(&self) -> u64 {
+        self.len() - self.position()
+    }
+}
+
+/// An audio sample in the range [-1, 1].
+pub type Sample = f32;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use rstest::*;
+    use speculoos::prelude::*;
+
+    mod audio_clip {
+        use super::*;
+
+        #[derive(Clone, Debug)]
+        struct MockAudioClip {
+            len: u64,
+            sampling_rate: u32,
+        }
+
+        impl AudioClip for MockAudioClip {
+            fn len(&self) -> u64 {
+                self.len
+            }
+
+            fn sampling_rate(&self) -> u32 {
+                self.sampling_rate
+            }
+
+            fn create_sample_reader(&self) -> Result<Box<dyn SampleReader>, AudioError> {
+                todo!()
+            }
+        }
+
+        #[rstest]
+        fn provides_duration() {
+            let mut clip = MockAudioClip {
+                len: 0,
+                sampling_rate: 44100,
+            };
+            assert_that!(clip.duration()).is_equal_to(Duration::ZERO);
+
+            clip.len = 4410;
+            assert_that!(clip.duration()).is_equal_to(Duration::from_millis(100));
+
+            clip.len = 1;
+            clip.sampling_rate = 1_000_000;
+            assert_that!(clip.duration()).is_equal_to(Duration::from_micros(1));
+        }
+
+        #[rstest]
+        fn provides_is_empty() {
+            let mut clip = MockAudioClip {
+                len: 0,
+                sampling_rate: 44100,
+            };
+            assert_that!(clip.is_empty()).is_true();
+
+            clip.len = 1;
+            assert_that!(clip.is_empty()).is_false();
+
+            clip.sampling_rate = u32::MAX;
+            assert_that!(clip.is_empty()).is_false();
+        }
+    }
+
+    mod sample_reader {
+        use super::*;
+
+        #[derive(Debug)]
+        struct MockSampleReader {
+            pos: u64,
+            len: u64,
+        }
+
+        impl SampleReader for MockSampleReader {
+            fn len(&self) -> u64 {
+                self.len
+            }
+
+            fn position(&self) -> u64 {
+                self.pos
+            }
+
+            fn set_position(&mut self, _position: u64) {
+                todo!()
+            }
+
+            fn read(&mut self, _buffer: &mut [Sample]) -> Result<(), AudioError> {
+                todo!()
+            }
+        }
+
+        #[rstest]
+        fn provides_is_empty() {
+            let mut sample_reader = MockSampleReader { pos: 0, len: 0 };
+            assert_that!(sample_reader.is_empty()).is_true();
+
+            sample_reader.len = 1;
+            assert_that!(sample_reader.is_empty()).is_false();
+        }
+
+        #[rstest]
+        fn provides_remainder() {
+            let mut sample_reader = MockSampleReader { pos: 0, len: 0 };
+            assert_that!(sample_reader.remainder()).is_equal_to(0);
+
+            sample_reader.len = 10;
+            assert_that!(sample_reader.remainder()).is_equal_to(10);
+
+            sample_reader.pos = 8;
+            assert_that!(sample_reader.remainder()).is_equal_to(2);
+        }
+    }
+}
diff --git a/rhubarb/rhubarb-audio/src/audio_error.rs b/rhubarb/rhubarb-audio/src/audio_error.rs
new file mode 100644
index 0000000..05610ef
--- /dev/null
+++ b/rhubarb/rhubarb-audio/src/audio_error.rs
@@ -0,0 +1,161 @@
+use std::{
+    error::Error,
+    fmt::{self, Display, Formatter},
+    io::{self, ErrorKind},
+};
+
+/// The error type for working with audio.
+#[derive(Debug)]
+pub enum AudioError {
+    /// This library doesn't know how to read audio files with the current file's extension.
+    UnsupportedFileType,
+
+    /// The current file uses an unsupported feature, such as an audio codec or a sample format.
+    ///
+    /// Expects a string containing a more detailed error message.
+    UnsupportedFileFeature(String),
+
+    /// The current file doesn't adhere to the expected file format. This could be because it got
+    /// corrupted during transfer or because it is a valid file that received the wrong file
+    /// extension.
+    ///
+    /// Expects a string containing a more detailed error message.
+    CorruptFile(String),
+
+    /// An I/O error occurred trying to read from or write to the current file.
+    IoError(io::Error),
+}
+
+impl Error for AudioError {
+    fn source(&self) -> Option<&(dyn Error + 'static)> {
+        // Don't expose source. See https://stackoverflow.com/a/63620301/52041
+        None
+    }
+}
+
+impl Display for AudioError {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::UnsupportedFileType => write!(f, "Unsupported audio file type."),
+            Self::UnsupportedFileFeature(message) => {
+                write!(f, "Unsupported audio file feature: {message}")
+            }
+            Self::CorruptFile(message) => {
+                write!(f, "Audio file appears to be corrupt: {message}")
+            }
+            Self::IoError(io_error) => write!(f, "Error reading audio file: {io_error}"),
+        }
+    }
+}
+
+impl From<io::Error> for AudioError {
+    fn from(io_error: io::Error) -> Self {
+        if io_error.kind() == ErrorKind::UnexpectedEof {
+            Self::CorruptFile("Unexpected end of file.".to_owned())
+        } else {
+            Self::IoError(io_error)
+        }
+    }
+}
+
+impl PartialEq for AudioError {
+    fn eq(&self, other: &Self) -> bool {
+        match (self, other) {
+            (Self::UnsupportedFileType, Self::UnsupportedFileType) => true,
+            (
+                Self::UnsupportedFileFeature(left_message),
+                Self::UnsupportedFileFeature(right_message),
+            ) => left_message == right_message,
+            (Self::CorruptFile(left_message), Self::CorruptFile(right_message)) => {
+                left_message == right_message
+            }
+            (Self::IoError(left_error), Self::IoError(right_error)) => {
+                left_error.kind() == right_error.kind()
+            }
+            _ => false,
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use assert_matches::assert_matches;
+    use rstest::*;
+    use speculoos::prelude::*;
+
+    #[rstest]
+    fn does_not_expose_source() {
+        let error = AudioError::UnsupportedFileType;
+        assert_that!(error.source()).is_none();
+
+        let error = AudioError::IoError(io::Error::from(ErrorKind::NotFound));
+        assert_that!(error.source()).is_none();
+    }
+
+    #[rstest]
+    fn supports_display() {
+        let error = AudioError::UnsupportedFileType;
+        assert_that!(format!("{error}")).is_equal_to("Unsupported audio file type.".to_owned());
+
+        let error = AudioError::UnsupportedFileFeature("Spacial audio not supported.".to_owned());
+        assert_that!(format!("{error}"))
+            .is_equal_to("Unsupported audio file feature: Spacial audio not supported.".to_owned());
+
+        let error = AudioError::CorruptFile("Checksum doesn't match.".to_owned());
+        assert_that!(format!("{error}"))
+            .is_equal_to("Audio file appears to be corrupt: Checksum doesn't match.".to_owned());
+
+        let error = AudioError::IoError(io::Error::from(ErrorKind::NotFound));
+        assert_that!(format!("{error}"))
+            .is_equal_to("Error reading audio file: entity not found".to_owned());
+    }
+
+    mod from_io_error {
+        use super::*;
+
+        #[rstest]
+        fn converts_from_io_error() {
+            let error = AudioError::from(io::Error::from(ErrorKind::NotFound));
+            assert_matches!(
+                error,
+                AudioError::IoError(io_error) if io_error.kind() == ErrorKind::NotFound
+            );
+        }
+
+        #[rstest]
+        fn treats_unexpected_eof_as_corrupt() {
+            let error = AudioError::from(io::Error::from(ErrorKind::UnexpectedEof));
+            assert_matches!(
+                error,
+                AudioError::CorruptFile(message) if message == "Unexpected end of file."
+            );
+        }
+    }
+
+    #[rstest]
+    fn supports_partial_equality() {
+        assert_that!(AudioError::UnsupportedFileType).is_equal_to(AudioError::UnsupportedFileType);
+        assert_that!(AudioError::UnsupportedFileType)
+            .is_not_equal_to(AudioError::CorruptFile("".to_owned()));
+
+        assert_that!(AudioError::CorruptFile("Foo".to_owned()))
+            .is_equal_to(AudioError::CorruptFile("Foo".to_owned()));
+        assert_that!(AudioError::CorruptFile("Foo".to_owned()))
+            .is_not_equal_to(AudioError::CorruptFile("Bar".to_owned()));
+
+        assert_that!(AudioError::from(io::Error::from(ErrorKind::UnexpectedEof)))
+            .is_equal_to(AudioError::from(io::Error::from(ErrorKind::UnexpectedEof)));
+        assert_that!(AudioError::from(io::Error::new(
+            ErrorKind::UnexpectedEof,
+            "Foo"
+        )))
+        .is_equal_to(AudioError::from(io::Error::new(
+            ErrorKind::UnexpectedEof,
+            "Bar",
+        )));
+        assert_that!(AudioError::from(io::Error::from(ErrorKind::UnexpectedEof))).is_not_equal_to(
+            AudioError::from(io::Error::from(ErrorKind::ConnectionReset)),
+        );
+    }
+}
diff --git a/rhubarb/rhubarb-audio/src/lib.rs b/rhubarb/rhubarb-audio/src/lib.rs
new file mode 100644
index 0000000..84009f3
--- /dev/null
+++ b/rhubarb/rhubarb-audio/src/lib.rs
@@ -0,0 +1,19 @@
+#![warn(
+    rust_2018_idioms,
+    missing_debug_implementations,
+    missing_docs,
+    clippy::cast_lossless,
+    clippy::checked_conversions,
+    clippy::ptr_as_ptr,
+    clippy::unnecessary_self_imports,
+    clippy::use_self
+)]
+#![allow(clippy::module_inception)]
+
+//! Audio library for use in Rhubarb Lip Sync.
+
+mod audio_clip;
+mod audio_error;
+
+pub use audio_clip::{AudioClip, Sample, SampleReader};
+pub use audio_error::AudioError;
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..026d018
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,2 @@
+rootProject.name = "rhubarb-lip-sync"
+include("rhubarb:rhubarb-audio")