pub fn notes_sorted(stream: &Stream) -> Vec<Searched<'_>>Expand description
The notes of a stream in the order music21’s recurse().notes.stream()
leaves them: by offset in the stream, then by class, grace notes first,
then as the walk met them – so the notes of two voices interleave.
It is what music21 hands its translations when it indexes a part, and so what a caller translating a part itself – the wheel, whose translator may fail – must hand them too.