I drag and drop MIDI tracks to Sonar x3 all the time. Go to drag and drop mode in BiaB, open Sonar and drag only the MIDI bass track into Sonar. You can delete the part(s) of the track in Sonar.


Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware