diff --git a/Cargo.toml b/Cargo.toml
index 535c67b..bca068d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,9 +7,7 @@ edition = "2021"
 anyhow = "1.0"
 cfg-if = "1.0.0"
 clap = { version = "4.5", features = ["derive"] }
-derived-deref = "2.1.0"
 fasteval = "0.2.4"
-splines = "4.3.1"
 tinyaudio = { version = "0.1", optional = true }
 
 [features]
diff --git a/src/cli.rs b/src/cli.rs
index bc5587c..ea8bb94 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,18 +1,14 @@
-use std::str::FromStr;
+use std::{fs::read_to_string, ops::Deref, path::Path, str::FromStr};
 cfg_if! {
     if #[cfg(feature = "save")] {
         use std::path::PathBuf;
     }
 }
 
+use anyhow::{Context, Error};
 use cfg_if::cfg_if;
 use clap::Parser;
 
-mod instrument;
-mod score;
-pub use instrument::Instrument;
-pub use score::Score;
-
 #[derive(Parser)]
 #[cfg_attr(debug_assertions, derive(Debug))]
 pub(super) struct Args {
@@ -26,3 +22,51 @@ pub(super) struct Args {
     silent: bool,
     score: Score,
 }
+
+#[derive(Clone)]
+#[cfg_attr(debug_assertions, derive(Debug))]
+pub(super) struct Score(String);
+
+impl FromStr for Score {
+    type Err = Error;
+    fn from_str(value: &str) -> Result<Self, Self::Err> {
+        let maybe_a_path = Path::new(&value);
+        Ok(Score(if maybe_a_path.is_file() {
+            read_to_string(maybe_a_path)
+                .context("you gave me the path of a real file but reading it is hard!")?
+        } else {
+            value.to_owned() // hope it's a good one
+        }))
+    }
+}
+
+impl Deref for Score {
+    type Target = <String as Deref>::Target;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[derive(Clone)]
+#[cfg_attr(debug_assertions, derive(Debug))]
+pub(super) struct Instrument(String);
+
+impl FromStr for Instrument {
+    type Err = Error;
+    fn from_str(value: &str) -> Result<Self, Self::Err> {
+        let maybe_a_path = Path::new(&value);
+        Ok(Instrument(if maybe_a_path.is_file() {
+            read_to_string(maybe_a_path)
+                .context("you gave me the path of a real file but reading it is hard!")?
+        } else {
+            value.to_owned() // hope it's a good one
+        }))
+    }
+}
+
+impl Deref for Instrument {
+    type Target = <String as Deref>::Target;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
diff --git a/src/cli/instrument.rs b/src/cli/instrument.rs
deleted file mode 100644
index c9bfe64..0000000
--- a/src/cli/instrument.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-use std::{fs::read_to_string, path::Path, str::FromStr};
-
-use anyhow::{Context, Error};
-use derived_deref::Deref;
-
-#[derive(Clone, Deref)]
-#[cfg_attr(debug_assertions, derive(Debug))]
-pub struct Instrument(String);
-
-impl FromStr for Instrument {
-    type Err = Error;
-    fn from_str(value: &str) -> Result<Self, Self::Err> {
-        let maybe_a_path = Path::new(&value);
-        Ok(Instrument(if maybe_a_path.is_file() {
-            read_to_string(maybe_a_path)
-                .context("you gave me the path of a real file but reading it is hard!")?
-        } else {
-            value.to_owned() // hope it's a good one
-        }))
-    }
-}
diff --git a/src/cli/score.rs b/src/cli/score.rs
deleted file mode 100644
index a1fac87..0000000
--- a/src/cli/score.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-use std::{fs::read_to_string, path::Path, str::FromStr};
-
-use anyhow::{Context, Error};
-use derived_deref::Deref;
-
-#[derive(Clone, Deref)]
-#[cfg_attr(debug_assertions, derive(Debug))]
-pub struct Score(String);
-
-impl FromStr for Score {
-    type Err = Error;
-    fn from_str(value: &str) -> Result<Self, Self::Err> {
-        let maybe_a_path = Path::new(&value);
-        Ok(Score(if maybe_a_path.is_file() {
-            read_to_string(maybe_a_path)
-                .context("you gave me the path of a real file but reading it is hard!")?
-        } else {
-            value.to_owned() // hope it's a good one
-        }))
-    }
-}