电子说
use staff::{midi, Chord, Pitch}; let chord = Chord::from_midi( midi!(C, 4), [midi!(E, 3), midi!(G, 3), midi!(C, 4)] ); assert_eq!(chord.to_string(), "C/E"); let pitches = [Pitch::E, Pitch::G, Pitch::C]; assert!(chord.into_iter().eq(pitches)); 原文链接: https://github.com/staff-rs/staff
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