Improvisation VI – Polyrhythmic Derailings

This is another analog modular improvisation with added drums (Toontrack EZdrummer) and some Mellotron (GForce M-Tron) choir sounds. Drums and choir chords were prepared in Ableton Live and there’s quite some interaction between the things I do in Live and on the A-100 (thanks to Kenton Pro 2000,  Doepfer A-119 and Steinberg MR816).

The bass line is made of two A-110 VCOs (both with sawtooth waves, same octave) put through an A-108 Ladder Filter (24 dB out), doubled by another two A-110s through another A-108. The two voices are put in opposite stereo positions. Both voices share the same A-140 ADSRs.

Later, there is a high-pitched voice, which is a single A-111 VCO (triangle wave) put into an A-137-2 Wave Multiplier II and into two chained A-106-1 Xtreme Filters: the first one is set up as highpass, the second one as lowpass. Both filters are controlled by the same A-142 VC Decay. The sequences were controlled by (a) the A-148 S&H fed with coloured noise (bass line), put into an A-156 Quantizer and (b) the arpeggiator of Live (high pitched line). The Mellotron midi notes are used for transposing the A-156 via Kenton interface (last note priority) and for the arpeggiator as well.

Triggers for the bass line are derived from Live’s sequencer clock put through A-160 Clock Divider and then into an A-165 Trigger Modifier. Original, inverted and +/- Trigger from the A-165 are switched in an A-151 Sequential Switch (which is controlled by the gate output of the A-142 that controlls the high pitched sequence). Complicated? The drums were fed into an A-119 External Input where we get the trigger signals to control the A-142. No sound processing of the drums in the A-100, that’s just Live’s built-in tools.

Here we go:

Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.

Track length is 04:12.

Have fun,