The MOOG Subsequent 37 is a monophonic analog synthesizer with 2 oscillators, 256 storable presets, 37-key keyboard. It is a redesign of the powerful Sub 37 Tribute Edition with a revised sound engine. A keyboard upgrade allows for even better playability and the design has also been revised. The Subsequent 37 features a sturdy construction made of steel and aluminum elements as well as two aluminum side panels with real wood inlays that bear the typical MOOG signature and underline their craftsmanship.