The Doepfer MAQ16/3 sequencer Row 1 provided a MIDI-synced 4 note sequence, timed to 16th notes. With the Blacet 2100 VCO, you have voltage control over Octave Shift to cover three octaves. By using a Ramp LFO shape from a Doepfer A-145 LFO and resetting the cycle with a trigger message from Row 2 of the MAQ16/3, I was able to create an arpeggio that covered 3 octaves, with 4 notes per octave. The MAQ16/3 CV 1 Out goes to the CV In of a Doepfer A-156 Dual Quantizer which forces the voltages into a major scale. The A-155 sequencer’s 8 step sequence goes to the Transpose In of the Quantizer. The LFO reset sequence needed to be 12 steps long with a trigger at Step 1 only, and could be delayed just a bit (like with an A-162 TDEL or since we are using a step sequencer, use a different step) so that the octave change occurred later.

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