First song on op-1=digital barf
it sounds like there is some sidechaining going on; or is that just sounds slamming against maximus?
Op-1 doesn't have native side-chaining that I know of, but there is a compressor that you can put at the end of the 4 track output. I guess if abused can sound like side chaining. There might be some tricks to accomplish some faux side chain effects by bouncing tracks around and stuff and manipulating them using an lfo controlled by a signal. but it would be way more time consuming than it's worth i would think. Or perhaps just the old school play with the volume knob to the beat.
OP TUN TY