M’s musical heart is an eight-voice polyphonic, four-part multitimbral WAVETABLE SYNTHESIZER — as boldly blazoned in red across its full-metal blue- coloured casing, itself hinting at its illustrious Microwave heritage — are two wavetable oscillators with independent wavetable-generating Classic Microwave 1 and Modern Microwave II/XT modes, meaning that the wavetable oscillators behave differently in both of those modes (accessible by pressing the Mode button beside the helpful high-resolution graphic display with four endless encoders for yet more hands-on control).