Analogue-sequencer

> Assume I have one pattern programmed.

...snip...

> I *see* the playlist jump to P:4 R:2 T:0, the led on step 4 turns 
red, 
> but no sound.
> 
> Yes, there ARE notes in pattern 4 and yes, midichannel is set to 1 
as 
> is pattern1.
> 
> I am sure *I* miss something here... But WHAT?

It sounds like you are doing what you're supposed to, and it works 
that way for me.
Have you gone into edit mode on pattern 4 as it plays, to check that 
the position indicator advances across the pattern when it's 
playing ?
If you've been playing with the arpeggiator, maybe you left the 
pattern set at length 1, with step 1 skipped ?
You could always send me a sysex dump so I can check the behaviour 
out here.

Cheers,
Colin f