Improvisation #93 for Poly Evolver Keyboard

This patch shows a bit of the caustic side of the Poly Evolver.  With the filter mostly closed, even the most metallic-sounding digital wave shapes can seem fairly soft and sweet.  But when the filter is opened – regardless of whatever help the analog side might be offering the patch – the Evolver’s famous harshness is undeniable and its reputation is shown to be well-deserved.  I don’t often wander into this sonic range of the instrument, except to create an occasional tragic but text-less tone painting.

The patch makes use of all four oscillators, pulse width modulation, and a slight amount of slow LFO-generated filter modulation which, even in the softer sections, pushes the digital oscillators slightly into their discordant timbre.

The photograph is of the Alcott barn in Concord, Massachusetts, USA.

DSI Poly Evolver Keyboard
DSI Poly Evolver Rack

DSI Prophet ’08 Module
Hammond XPK 200L Pedal Board

Reverb from Lexicon MX300

Performed live and recorded directly to a Tascam DR-100 MKIII Linear PCM Recorder



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