diff --git a/src/cli/cli.rs b/src/cli/cli.rs
index 38b834e..8745204 100644
--- a/src/cli/cli.rs
+++ b/src/cli/cli.rs
@@ -29,7 +29,7 @@ use nom_locate::{LocatedSpan, position};
 use strum::{EnumDiscriminants, EnumString, IntoDiscriminant, IntoStaticStr};
 use thiserror::Error;
 
-const DEFAULT_INSTRUMENT: &str = "sin(2*pi()*(442+442*((n+1)/N))*t)";
+const DEFAULT_INSTRUMENT: &str = "sin(2*pi()*(442*2^((n+1)/N))*t)";
 const DEFAULT_LENGTH: &str = "2^(2-log(2, l))*(60/T)";
 
 #[derive(Debug, Parser)]
diff --git a/src/cli/main.rs b/src/cli/main.rs
index dd15702..91ee81d 100644
--- a/src/cli/main.rs
+++ b/src/cli/main.rs
@@ -97,8 +97,9 @@ fn parse_and_compile(opts: &PlayOpts) -> anyhow::Result<Vec<f64>> {
         opts.slopes()
             .map(|(s, (v, e))| (s, VariableChange(*v, e.clone())))
             .collect::<Vec<_>>(),
-        opts.variables()
-            .chain(HashMap::from(default_variables).iter())
+        HashMap::from(default_variables)
+            .iter()
+            .chain(opts.variables())
             .map(|(v, _)| *v)
             .collect::<Vec<_>>(),
     );
@@ -118,9 +119,10 @@ fn parse_and_compile(opts: &PlayOpts) -> anyhow::Result<Vec<f64>> {
     let compiler = Compiler::from(Context::new(
         'L'.to_string(),
         'n'.to_string(),
-        opts.variables()
-            .map(|(a, b)| (a.to_string(), *b))
-            .chain(default_variables.map(|(c, v)| (c.to_string(), v))),
+        default_variables
+            .map(|(c, v)| (c.to_string(), v))
+            .into_iter()
+            .chain(opts.variables().map(|(a, b)| (a.to_string(), *b))),
         opts.instrument().clone(),
         opts.slopes()
             .map(|(_, (a, b))| (a.to_string(), b.clone()))