Doepfer A-149-1

An excellent addition to your rack!

A great random generator.

It has two lines, one gives out either/or octaves and semitones in user defined intervalls. You feed it a clock signal and it spits out the rest.

The other line gives one with even voltage distribution of the max. 256 output states and second one with adjustable voltage distribution probability.

Even though the module is intended to generate slowly varying control voltages clock frequencies up to moderate audio range (about 2 kHz) can be processed. If you drive it beyond this limit the results are unpredictable but interesting.

Krell Universe

I bought this module to help me on the road to the Krell Muzak patch by Todd Barton.

There are two suggested machines including the dream machine on page 85 of Allen Strange's book "Electronic music - systems, techniques and controls", that can be modified according to the modules you possess. I have seen variations of this in the handbook for the O Coast synth by Walker Farrell and of course Todd Barton.

I made the one in the a 149-1 manual and it works a treat creating all sorts of wonderful random notes that repeat and vary in tempo and pitch.

The controls and features look very intimidating at first but if you concentrate on the outputs on the right hand side they clearly suggest the function.

Quantized Random Voltages is linear from the n+1 socket and exponential from the 2n setting, the range of randomness is effected by the Man N dial or with a cv voltage from CV N .

The Stored Random Voltages voltage section either has an even distribution of notes with the upper socket, or you decide with the lower socket and Man D dial, whether the random notes have a lower note bias and even balance or a higher note bias.

Sounds complicated until you start to play with it. I am over the moon with this module and is everything wanted for generative music.