Function monophonic_stream_from_wav 

pub fn monophonic_stream_from_wav(
    bytes: &[u8],
    scale: Option<&Scale>,
) -> Result<Stream>

The notes of a recording of one line, as a part: music21’s transcriber.monophonicStreamFromFile, which runs frequencies_from_wav, detect_pitch_frequencies, smooth_frequencies by seven, pitch_frequencies_to_objects, join_consecutive_identical_pitches and notes_and_durations_to_stream, rests at the beginning left out. Pitches are taken from scale, C major on C4 where none is given.

Errors

A file that is not an uncompressed WAV file, or one too short to smooth or to hold a note.