The M-VAVE FM-1 is a remarkably compact hardware synthesizer built around a six-operator FM engine. Despite its small footprint, the instrument combines 32 algorithms, 128 presets, an arpeggiator, a 16-step sequencer, MIDI connectivity, built-in effects, a rechargeable battery and a built-in speaker. At first glance, that feature set makes the FM-1 look like an unusually ambitious pocket ...