use musicbox::MusicBox; // Chord formation fn main() { let music = MusicBox::new(); let a0 = music .notary .get("A0").unwrap(); let c0 = music.notary.get("C0").unwrap(); let e0 = music.notary.get("E0").unwrap(); let a_minor_0 = (a0, c0, e0); dbg!(a_minor_0); }