Yes, I use a Kurzweil SP76 piano with a Ketron SD2 Soundmodule. It works without problem, but I need to use my laptop with your app. I use an USB to midi (the keyboard and the module only have 5-pin DIN midi conectors) to connect PC and two instruments. I have midi IN from keyboard to the PC and from your app to the sound module only the MIDI commands I use when selecting a song in your app. The notes played from the piano doesn't come from Midi IN to OUT. Remember I use Windows app, not Android.
The function is Midi Echo.... similar to THRU isn't it?
The function is Midi Echo.... similar to THRU isn't it?