Clear range, clear note(AudioKit : AKMusicTrack functions)

Question

I'm familiarizing myself with AKMusicTrack functions, specifically functions used to clear note data from a given sequence.

I can see that clearRange() will clear note data between a start and end range, and clearNote() will remove all events in the sequence of that note value.

Does anyone know of a function that will clear a single note? As in something like clearSingleNote(noteNumber MIDINoteNumber, position AKDuration, end AKDuration)?

Answer 1

You can use getMIDINoteData() to get an array of AKMIDINoteData, filter out the notes you don't want, then overwrite the music track using replaceMIDINoteData() with your filtered array:

// remove a C at timestamp 4.0
var trackData = myTrack.getMIDINoteData()
trackData = trackData.filter { $0.noteNumber =! 60 && 
                               $0.duration =! AKDuration(beats: 4.0) }
myTrack.replaceMIDINoteData(with: trackData)

There are more examples using getMIDINoteData() in the MIDIFileEditAndSync example project.