Check the listing for details. Moog Grandmother Semi-Modular Analog Synthesizer and Step Sequencer. Condition: Very Good - Refurbished. Listed at 899.10 USD. Delightfully Playable Semi-modular Analog Goodness The Moog Grandmother semi-modular analog synthesizer had us at "built-in spring reverb," and there is plenty more creative potential here than meets the eye. You can start playing and designing sounds immediately — no patching required. The onboard arpeggiator and sequencer are a blast to play with, and you can even save three sequences for instant recall anytime. And with its 32-note Fatar keybed, the Grandmother is one of the best-feeling compact analog synths you'll find. Whether you need it for stage or studio, the Moog Grandmother offers a fresh take on the classic Moog synth sound.Classic Moog architecture The colorful interface on the Moog Grandmother makes its lineage clear.