Feat: WIP terse code documentation

crates/forth/src/theory/chords.rs

@@ -1,8 +1,12 @@
+//! Chord definitions as semitone interval arrays.
+
+/// Named chord with its interval pattern.
 pub struct Chord {
     pub name: &'static str,
     pub intervals: &'static [i64],
 }
 
+/// All built-in chord types.
 pub static CHORDS: &[Chord] = &[
     // Triads
     Chord {
@@ -169,6 +173,7 @@ pub static CHORDS: &[Chord] = &[
     },
 ];
 
+/// Find a chord's intervals by name.
 pub fn lookup(name: &str) -> Option<&'static [i64]> {
     CHORDS.iter().find(|c| c.name == name).map(|c| c.intervals)
 }