Yeah, pretty much. Its all midi in one form or another. They
all have their quirks when it comes to programming them. Before
we had a drummer, we tried using the RX-15 through the PA. I tried
programming a few tunes into it. One song was Bad Religion by
Godsmack. I had it all programmed really close. So I figured
that I'd try hooking up the midi cables to my PC and record
the drums (through midi) and overdub some guitar and bass
tracks. Unfortunatelly the language the RX-15 spoke was different
than general midi and it came out all fucked up. It substituted
flutes and trombones, and all kinds of stuff in place of the drum samples.