Looks like the MIDI channel to sound assignment is explained on page 33 or so of the manual.
The MIDI section talks about assigning sounds to channels and the options.

HTH

http://downloads.arturia.com/products/analoglab/manual/analoglab_Manual_3_0_EN.pdf

Still, if BiaB is sending a MIDI message to use the Piano sounds, then you could change it in the synth, only to have BiaB change it when you hit play.

I like the way RB handles this stuff much better.

Edit:
you changed your post.
If it is a different sound when playing it than when it generates, it may be the Thru Channel settings .. which confuse me in BiaB. Hopefully someone more knowledgeable than I can show up.

Last edited by rharv; 03/14/18 01:13 PM.

I do not work here, but the benefits are still awesome
Make your sound your own!