Hi Nigel,
thank you , but too late,
I didn't think to record kn backing sequences in any format. Wav , mp3 or even midifile. I usually just play in arranger mode to entertain myself.

All the other keyboards I've had are replaceable, with newer versions, ( should I feel the need (haa haa)
didn't take into account the kn7 was the last of the line, and the odd recorded backing sequence would have been nice.

Only reason I mentioned Wav format, is , my understanding is that it's the highest quality of all the audio formats?

best wishes
Rikki