Thanks for your reply, I'll try to look at the video.

My case is a bit different; I'd like to be able to, on the fly at a moment's notice, select a different sound for this external keyboard - with ONE button press. I did this with a Technics, a Roland midi keyboard, and a Peavey 1600x MIDI device. At any time, I pressed ONE button, and my mini MIDI keyboard played a trumpet - or a sax - or strings - or whatever I programmed into the MIDI data string. It always came up with the exact sound I wanted, with all the settings (DSP, etc.) proper for that sound.

I like to be able to, at a moment's notice, change the sound that I'm getting when playing an external MIDI keyboard connected to the Yamaha.

Thanks!
Jim