Generally speaking, you can only change/amend notation on the Melodist and Soloist tracks. BiaB will generate its own arrangements on the other tracks.

If you are using MIDI on the other tracks (yellow), you can possibly freeze the tracks after you make any changes, and then save the song. When you next open the song, your changes should have been preserved.

If you are using RealTracks on those tracks (green), then any changes you make are not preserved, as these are Audio files, not MIDI. Some RealTracks have notation available, which is just a transcription from the artist produced audio.

Hope this helps.


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