Dark Steps approximates a group of 3 Doepfer Dark Energy plus a 3x8 / 2x16 stepLFO.

It combines features of the DE I and II: Tri/Pulse/Saw waveforms and 4-pole Low Pass as in DE I; Multimode Filter as in DE II.

Each module is a complete 'voice' and contains a VCO, VCF, VCA, ADSR and two LFOs. Envelopes have two time ranges; LFOs, three rate ranges (up to audio rate).

Each 'synth voice' has it's own Pitch Bend range and Glide controls, and stereo pan. For visual clarity, the modules are labeled A, B, C, D and are color-coded alternately.

Each module's LFO 1, Envelope and audio out can be patched to any of the patch points along the bottom of each module; unlike hardware, each patch point has a built-in attenuator.

Also available as Dark Four, which substitutes the stepLFO with a fourth synth module.