Actually, I didn't know there were ANY keyboards that were constantly in 'record', though, once again, I don't think that audio recording is anywhere near as useful as MIDI... There's little you can do with your 'magic moment' other than listen to it, whereas a MIDI capture allows so very much more...

The thing is, audio recording an arranger, unless you ARE mixing in mikes and other instruments, seems utterly pointless until you have first MIDI recorded it, and been able to edit it or mix it more objectively than you can while you are actually playing.

If a MIDI recorder captures and plays back EXACTLY what you just played, it is functionally no different to the audio capture, except you DO have total control over the recording AFTERWARDS.

JMO...