The instrument
The Moog Opus 3, introduced in 1980, is a 49-key analog synthesizer designed by Herbert A. Deutsch. It combines three distinct sections—strings, brass, and organ—each contributing to its versatile sound palette. While not as programmable as other synthesizers, the Opus 3 allows users to blend these sections, creating rich, layered tones characteristic of Moog's analog warmth. Notable users include bands like Stereolab and Kraftwerk, who utilized its lush textures in their music.
Details
The Opus 3 features full polyphony with a divide-down oscillator system, allowing simultaneous note playback across its 49 keys. Each section—strings, brass, and organ—has dedicated controls : either a 24db filter with resonance and an envelope for strings and brass or a fixed filter bank for the organ. An onboard chorus effect enhances the string section, and stereo outputs with panning capabilities provide spatial modulation. The instrument also includes an LFO with selectable waveforms for modulation purposes.