Doepfer

Hi all,

I've always been tempted to add a sequencer to my modular and have a few 
questions.  I'm not really interested in using it to sequence notes but I am 
very interested in the modulation possibilities it affords.  Aside from the 
obvious stuff,  I've seen it mentioned that it could be used as a graphic 
vco.  How would you do this?  As I understand it the sequencer advances one 
step for each incoming trigger it receives.  If you sent an audio rate 
signal, it would take eight cycles of that signal to replay the whole 
'waveshape' drawn by the knobs.  So there'd always be an eightfold frequency 
discrepancy between the incoming and outgoing signals.  Correct?  Or am I 
completely off the mark here?

I see that it is possible to use it as a multi-stage envelope via the a154, 
but is it possible to do this without an a154 using other modules?

Finally, there seem to be only two possibilities available in eurorack 
format: the a155 and the upcoming planb model21.  I realise that the planb 
model doesn't exist yet, but assuming that it did, what are the advantages 
of the a155 over the model21?  I've read through all the docs on both models 
but since I've never used a sequencer like this, I don't have a real sense 
of how significant the differences between them are in any practical sense.  
I only have room for one of these and because of where I live can't easily 
resell modules so I'd very much like to avoid making a mistake.  I suppose 
people will say that it depends on what I want to use it for, but the 
problem I have is that I don't know exactly what I'd use it for.  My natural 
inclination is to say that I'd mainly like to use it to sequence 
modulations, but I have this weird feeling that I might end using the 
trigger functionality a lot more than I intended...

thanks in advance,

rgds

Pierre

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