Hi DGA. This is something that has been around for a long time, but is probably pretty obscure knowledge now because it involves only MIDI.

Take a BIAB song and click on the .MID button (to the right of Save As). This brings up the Choose Destination dialog. Click on the Options button. You will see you can choose to write harmony to separate tracks, and/or write Guitar parts to 6 channels.

Add these together with the available instruments that everyone knows (piano, bass, strings etc.) and you can easily see where the 16 channels went.

As far as I can see, and you can look yourself, there is no option for splitting piano MIDI parts.

Now, about the second bank: many other music programs support two banks of 16 channels of MIDI.

And before anyone else gets excited, please remember that this is describing MIDI only, not RealTracks. All I'm doing is providing some background about how the program apparently was designed, decades before RealTracks were added. But there's no guarantee I'm correct.

Make sense?

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.