[sdiy] trying to understand appregiators in late 70's synths

[Magnus Danielson]

Dan Snazelle skrev:
> it's not that i am set on NON midi or on MIDI
> 
> or even that i am set on mimicking anything
> 
> i just want to figure out how the heck to do it!! 
> 
> i dont really see the need for it to be midi based though.
> 
> i am more interested in an appregiator that puts out gate and cv natively and then i could use some other machine to convert that INTO midi i guess.
> 
> 
> 
> if there is no way to do it without software than i might give up for a little  while at least. i had hoped it could be done
> with cmos. but this might push me to learn how to use some kind of software device. i have thought about learning what the hell 
> all these pics and microcontrollers can do for awhile BUT i just dont need one MORE interest that takes all my time right now. :)

It's basically a sequencer playing a short loop in rapid order. Exactly 
what arpeggio features you choose to have is up to you as you design it. 
Many of the synthesizers including it let you just put your fingers down 
and it would (with a LFO) step through the notes. It was simple and 
straightforward in that context and quite useful to save the fingers of 
the keyboard player. Another variant is to use a short sequencer and 
then just use the keyboard to transpose the arpeggio-sequence, which is 
a personal favorite version. If this sequencer is programmed by pushing 
downs keys on a keyboard or by turning sequencer knows is not really the 
important thing, but usually you want it to play the correct seminotes 
at least, so an analog sequencer with quantizer is probably a good 
thing. Transpose CV to be added after the quantizer should probably be 
the best choice.

It is not hard if you just let it be simple.

Cheers,
Magnus