HI Jan

Well pleased you have found a work around.
I can see that would work fine except that the file does not have dual compatibility
Guess you could have 2 versions,.
We should have been able to solve this with a good patch file. I will have a go creating one for you if I can find a Sona instrument def for your clav. and tell you how to load it as you seem to have a problem loading patch files. This will be useful if you want to connect your BIAB to your CLAV as an external synth and allow you to use any of the voices including the higher bank ones from the panel.
May take a few days
Regards
Mike

BIAB2021 UltraPlus,AsusN55S1Tbssd, W10/64,Akai EIEpro
Yamaha CVP405,SquireStrat, CoolsoftVMidSynth
Novatation Impulse61 Ctr kbd, Cwalk blab Kontakt

http://mikesmusic.byethost16.com/