MATRIXSYNTH: Radio Morning

Saturday, October 10, 2020

Radio Morning


"A real time recording of the Moog Subharmonicon, EH Canyon Looper, Empress Reverb, Encore Frequency Shifter, a custom RADIO module for the 5U large format modular, Dove Audio WTF VCO, Q150 filter and Echo Fix EF-X2 tape delay.
The radio module is voltage controlled by a Q119 step sequencer from It is run into the frequency shifter and a mix of several noise and stored random voltages from the Sputnik West Coast Random Source (a Buchla Source of Uncertainty clone) is modulating the frequency center. This is then run to an STG Post Lawsuit Low Pass Filter and on to an Oakley Audio state variable filter in band pass resonant mode. I am playing the center frequency of this filter and sending the signal on to the Echo Fix tape delay. The delay is voltage controlled from a Mega Ohm Audio LFO2 module from the 5U modular with a very slow rising ramp wave. As the voltage drops off the tape delay motor sweeps back down with a wonderful gliding effect.
The Subharmonicon is clocked from another Mega Ohm Audio LFO2. The output of Sequencer 2 is sent to a Dove Audio Window Transform Function VCO and gated to a Q109 Envelope Generator as well as run through the Q150 Transistor Ladder filter by
A separate instance of the Subharmonicon was previously recorded to the Electro Harmonix Canyon pedal looper. It is faded up at the last portion to add momentum to the piece. The Empress Reverb pedal is adding some nice modulated reverb to the SubH and Canyon.
What I really enjoyed was the glorious runaway feedback of the tape echo. It was fun to balance out the moving swells at the same time as playing the sub oscillators on the SubH and Oakley filter. As I moved about the antenna of the radio varied in how strong the signal picked up the AM radio stations. This lended another modulation and random aspect to the waveforms injected into the piece. A fun exercise."

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