The Solo side can be addressed as up to 32 channels of MIDI, just like the GM side can. It also has Upper Banks instruments. Don't know if Ketron really intends one to access them, but if you connect the Solo MIDI input to computer output and know the correct commands to send to it, they are there. Don't know why anyone would bother though, since the OTHER MIDI input is all set up and ready to go as GM plus Upper Banks right out of the box.

The Solo bank of the SD-4 comes with 64 Factory Preset patches and has 64 empty User Preset patches in the first bank.

The User can layer any two patches, with control over levels, effects, etc. and Save those to one of the User Presets for instant recall of the whole shebang.


--Mac