The net result is that if tempo is 120 BPM and SPEED
is 2.0, you get
fast forward at 240 BPM.
Of course, you may run backwards and stuff that way as
well, but
don't expect the synths to play sounds backwards... ;-)
Sounds sane - and that implies negative tempo? It's scary, but I guess
correct... Do we really want to deal with playing during shuttles? The
sequencer needs to send reversed ON/OFF events, but that's no big deal..