the little phatty is a monophonic analog synthesizer manufactured by moog music from 2006 to 2013, preceded by the voyager and succeeded by voyager old school. its design was conceived, in part, by robert moog himself, and is the last instrument to have that distinction, although the primary engineer was cyril lance. it is also the first moog product to be produced following his death. jordan rudess of the band dream theater also assisted with the design of the product.