diff --git a/Cargo.lock b/Cargo.lock
index 71b4544..4887dc1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -118,15 +118,6 @@ dependencies = [
  "pkg-config",
 ]
 
-[[package]]
-name = "android_system_properties"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "arboard"
 version = "3.2.0"
@@ -340,21 +331,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "chrono"
-version = "0.4.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16b0a3d9ed01224b22057780a37bb8c5dbfe1be8ba48678e7bf57ec4b385411f"
-dependencies = [
- "iana-time-zone",
- "js-sys",
- "num-integer",
- "num-traits",
- "time 0.1.45",
- "wasm-bindgen",
- "winapi",
-]
-
 [[package]]
 name = "clang-sys"
 version = "1.4.0"
@@ -423,16 +399,6 @@ dependencies = [
  "objc",
 ]
 
-[[package]]
-name = "codespan-reporting"
-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3538270d33cc669650c4b093848450d380def10c331d38c768e34cac80576e6e"
-dependencies = [
- "termcolor",
- "unicode-width",
-]
-
 [[package]]
 name = "combine"
 version = "4.6.6"
@@ -577,50 +543,6 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b365fabc795046672053e29c954733ec3b05e4be654ab130fe8f1f94d7051f35"
 
-[[package]]
-name = "cxx"
-version = "1.0.89"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc831ee6a32dd495436e317595e639a587aa9907bef96fe6e6abc290ab6204e9"
-dependencies = [
- "cc",
- "cxxbridge-flags",
- "cxxbridge-macro",
- "link-cplusplus",
-]
-
-[[package]]
-name = "cxx-build"
-version = "1.0.89"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94331d54f1b1a8895cd81049f7eaaaef9d05a7dcb4d1fd08bf3ff0806246789d"
-dependencies = [
- "cc",
- "codespan-reporting",
- "once_cell",
- "proc-macro2",
- "quote",
- "scratch",
- "syn",
-]
-
-[[package]]
-name = "cxxbridge-flags"
-version = "1.0.89"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48dcd35ba14ca9b40d6e4b4b39961f23d835dbb8eed74565ded361d93e1feb8a"
-
-[[package]]
-name = "cxxbridge-macro"
-version = "1.0.89"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81bbeb29798b407ccd82a3324ade1a7286e0d29851475990b612670f6f5124d2"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "darling"
 version = "0.13.4"
@@ -1072,7 +994,7 @@ dependencies = [
  "line-wrap",
  "quick-xml",
  "serde",
- "time 0.3.17",
+ "time",
 ]
 
 [[package]]
@@ -1093,7 +1015,7 @@ checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
@@ -1297,30 +1219,6 @@ dependencies = [
  "tokio-native-tls",
 ]
 
-[[package]]
-name = "iana-time-zone"
-version = "0.1.53"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64c122667b287044802d6ce17ee2ddf13207ed924c712de9a66a5814d5b64765"
-dependencies = [
- "android_system_properties",
- "core-foundation-sys",
- "iana-time-zone-haiku",
- "js-sys",
- "wasm-bindgen",
- "winapi",
-]
-
-[[package]]
-name = "iana-time-zone-haiku"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0703ae284fc167426161c2e3f1da3ea71d94b21bedbcc9494e92b28e334e3dca"
-dependencies = [
- "cxx",
- "cxx-build",
-]
-
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -1495,15 +1393,6 @@ dependencies = [
  "safemem",
 ]
 
-[[package]]
-name = "link-cplusplus"
-version = "1.0.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecd207c9c713c34f95a097a5b029ac2ce6010530c7b49d7fea24d977dede04f5"
-dependencies = [
- "cc",
-]
-
 [[package]]
 name = "lock_api"
 version = "0.4.9"
@@ -1620,19 +1509,10 @@ checksum = "e5d732bc30207a6423068df043e3d02e0735b155ad7ce1a6f76fe2baa5b158de"
 dependencies = [
  "libc",
  "log",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
  "windows-sys 0.42.0",
 ]
 
-[[package]]
-name = "mp3-duration"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "348bdc7300502f0801e5b57c448815713cd843b744ef9bda252a2698fdf90a0f"
-dependencies = [
- "thiserror",
-]
-
 [[package]]
 name = "native-tls"
 version = "0.2.11"
@@ -1796,16 +1676,6 @@ dependencies = [
  "syn",
 ]
 
-[[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-traits"
 version = "0.2.15"
@@ -2040,6 +1910,13 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d01a5bd0424d00070b0098dd17ebca6f961a959dead1dbcbbbc1d1cd8d3deeba"
 
+[[package]]
+name = "pd-playback"
+version = "0.1.0"
+dependencies = [
+ "minimp3",
+]
+
 [[package]]
 name = "peeking_take_while"
 version = "0.1.2"
@@ -2069,7 +1946,6 @@ name = "pipedash"
 version = "0.1.0"
 dependencies = [
  "base64 0.21.0",
- "chrono",
  "directories",
  "eframe",
  "flate2",
@@ -2078,7 +1954,6 @@ dependencies = [
  "itertools",
  "log",
  "md5",
- "mp3-duration",
  "ordered-float",
  "reqwest",
  "rodio",
@@ -2321,12 +2196,6 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
-[[package]]
-name = "scratch"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddccb15bcce173023b3fedd9436f882a0739b8dfb45e4f6b6002bee5929f61b2"
-
 [[package]]
 name = "sctk-adwaita"
 version = "0.4.3"
@@ -2467,7 +2336,7 @@ checksum = "48dfff04aade74dd495b007c831cd6f4e0cee19c344dd9dc0884c0289b70a786"
 dependencies = [
  "log",
  "termcolor",
- "time 0.3.17",
+ "time",
 ]
 
 [[package]]
@@ -2659,17 +2528,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "time"
-version = "0.1.45"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b797afad3f312d1c66a56d11d0316f916356d11bd158fbc6ca6389ff6bf805a"
-dependencies = [
- "libc",
- "wasi 0.10.0+wasi-snapshot-preview1",
- "winapi",
-]
-
 [[package]]
 name = "time"
 version = "0.3.17"
@@ -2848,12 +2706,6 @@ dependencies = [
  "tinyvec",
 ]
 
-[[package]]
-name = "unicode-width"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
-
 [[package]]
 name = "url"
 version = "2.3.1"
@@ -2910,12 +2762,6 @@ dependencies = [
  "try-lock",
 ]
 
-[[package]]
-name = "wasi"
-version = "0.10.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
-
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
diff --git a/Cargo.toml b/Cargo.toml
index e6bf489..63229ff 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,25 +1,6 @@
-[package]
-name = "pipedash"
-version = "0.1.0"
-edition = "2021"
+[workspace]
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-eframe = "0.20.1"
-rodio = "0.16.0"
-home = "0.5.4"
-base64 = "0.21.0"
-flate2 = "1.0.25"
-gd_plist = {git = "https://github.com/Syudagye/gd-plist.git", version = "1.4.0"}
-chrono = "0.4.23"
-ordered-float = "3.4.0"
-thiserror = "1.0.38"
-reqwest = {version = "0.11.14", features = [ "blocking" ]}
-urlencoding = "2.1.2"
-md5 = "0.7.0"
-itertools = "0.10.5"
-directories = "4.0.1"
-simplelog = "0.12.0"
-log = "0.4.17"
-mp3-duration = "0.1.10"
+members = [
+  "pipedash",
+  "pd-playback",
+]
diff --git a/pd-playback/Cargo.toml b/pd-playback/Cargo.toml
new file mode 100644
index 0000000..42920ad
--- /dev/null
+++ b/pd-playback/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "pd-playback"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+minimp3 = "0.5"
diff --git a/pd-playback/src/lib.rs b/pd-playback/src/lib.rs
new file mode 100644
index 0000000..a8491b5
--- /dev/null
+++ b/pd-playback/src/lib.rs
@@ -0,0 +1,9 @@
+use minimp3::{Decoder, Frame}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn test_runs() {
+    }
+}
diff --git a/pipedash/Cargo.toml b/pipedash/Cargo.toml
new file mode 100644
index 0000000..b174d53
--- /dev/null
+++ b/pipedash/Cargo.toml
@@ -0,0 +1,23 @@
+[package]
+name = "pipedash"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+eframe = "0.20.1"
+rodio = "0.16.0"
+home = "0.5.4"
+base64 = "0.21.0"
+flate2 = "1.0.25"
+gd_plist = {git = "https://github.com/Syudagye/gd-plist.git", version = "1.4.0"}
+ordered-float = "3.4.0"
+thiserror = "1.0.38"
+reqwest = {version = "0.11.14", features = [ "blocking" ]}
+urlencoding = "2.1.2"
+md5 = "0.7.0"
+itertools = "0.10.5"
+directories = "4.0.1"
+simplelog = "0.12.0"
+log = "0.4.17"
diff --git a/src/gd.rs b/pipedash/src/gd.rs
similarity index 100%
rename from src/gd.rs
rename to pipedash/src/gd.rs
diff --git a/src/main.rs b/pipedash/src/main.rs
similarity index 100%
rename from src/main.rs
rename to pipedash/src/main.rs
diff --git a/src/music.rs b/pipedash/src/music.rs
similarity index 99%
rename from src/music.rs
rename to pipedash/src/music.rs
index b04fe95..ffb0724 100644
--- a/src/music.rs
+++ b/pipedash/src/music.rs
@@ -1,7 +1,6 @@
 use std::time::Duration;
 use ordered_float::OrderedFloat as Float;
 use std::collections::{BTreeMap, BTreeSet};
-use rodio::{Source, Sample};
 
 pub type BeatPosition = Float<f32>;