Analogue-sequencer

There's a big difference between purely tempo-based sequencing of MIDI
events and linear playback of audio tracks, which seems to be the main
purpose of many "sequencers" now.
Taking account of the fact that once you record an audio track its tempo is
pretty much fixed, unless you have real-time tempo correction like Acid or
Ableton Live, I can see why Cubase SX dropped support for syncing to MIDI
clock.
It does seem a bit limiting not to allow it even if you choose to disable
the audio functions and run it as a pure MIDI sequencer...

If you're running P3 alongside a PC-based DAW system, slaving the P3 to MIDI
clock from the PC seems like the logical approach.

Best regards,
Colin Fraser
Sequentix Music Systems Ltd
http://www.sequentix.com