Rene K

I read this post with much interest. I found by using the onsong midi learn function that a bunch of sysex is outputted on selecting a registration setting, together with control changes on many channels. And interestingly always the same program change: 33 about the chordana app: it could be using USB midi, but also a propriety side channel. Still I hope RPN or NRPN is what thy are using. my use case is where onsong controls all the settings of the PX-S3000. Best this i done without the use of the registration memory, but if it selects a registration mem, that is fine too.