Hello, if you change the MIDI patch on the second track from the top of the Mixer, then it will change the sound of what plays in the Chord Builder. We tested this, and even if a RealTrack is loaded to this track, go through the steps of selecting an Acoustic Piano MIDI patch to it and it works. If it is a RealTrack there, this will not change the RealTrack that plays. But if you are already using a MIDI track and you like the bell sound in your song, then we suggest copying this track to a Utility track first.

To change the MIDI patch, click on the second track in the Mixer, and go to Select MIDI Instruments Patch | Select General MIDI Patch | 1. Acoustic Piano.

Best,
Chantelle