Yamaha digital pianos have on-board recorder which is quite convenient and separates left and right hands. However, the internal capacity is fairly limited and

Yamaha digital pianos have on-board recorder which is quite convenient and separates left and right hands. However, the internal capacity is fairly limited and there's some tolerable yet a delay after the recording to save the buffer on the flash. I don't think there's a ready way to copy such internal recording from the piano onto some external medium. This device may be a nice 'upgrade' for such digital pianos. It'd be nice if the recordings can also be played for a selected hand, so that it could be used in learning.