As I noted Artist Performance Files are not considered Artist Performance Tracks but a form of UserTracks. Here's what PG Staff say about Artist Performance Files in the UserTrack Forum:
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7. Artist Performance Files.

These are audio files, that you put on a track, that can also have the MIDI transcription of it. People hear the audio, and see the MIDI in notation/guitar tab etc. For example, if you are a great bluegrass fiddle player, you could put your songs in this format. People can listen to your real playing, see the notes on screen, slow them down etc. - all inside Band-in-a-Box where they can do other things like solo/mute other tracks, mix them etc. >>


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