You might have connected Zyn to play a sound for your midi-keyboard or a single midi-track. But did you know that it’s possible to handle different sounds on different channels, enabling you to map Zyn’s entire instrument bank for multichannel playback. Rosegarden by default has instrument channels that correspond to Zyn.
First you configure Zyn to handle different sounds
Load the desired instrument from the bank.
To load another instrument on a different channel step up the part number and load it from the bank.
If you want to load more instruments just repeat the procedure.
Then you configure Rosgarden to map them
On each track choose the same play devise that is connected to Zyn. The instruments #1, #2 correspond to the same channels in Zyn, Ch 1, Ch 2.