Try saving with patches and harmony and include the melody track. That may override any imbedded track info. Otherwise, this is typical of a midi file that is downloaded from the web. Whatever equipment was used to create the file in the first place put all the cc info in there, Biab is merely reading it.
I find Real Band much easier to work with for something like this. In RB, open up the event list, look for CC7's and strip them out, then import the track back into Biab or just do the whole song in RB in the first place. Remember, RB is Biab plus a 48 track sequencer. Pretty cool. People will talk about using Sonar or Pro Tools or whatever other sequencer usually because of simple familiarity, RB will do 'almost' everything they will plus most of the Biab functions plus Real Tracks/Drums that they don't have.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.