Roland V-Accordion FR-4x BK Piano Keyboard Type Black 120 Base Keys 128 Tones
Organ Tones (Virtual Tone Wheel) 32 (Right Hand, Orchestral Chord, Orchestral Free Bass), 16 (Orchestral Bass). Maximum simultaneous sound 128 tones. Rotary effect for organ Slow/Fast. Right hand keyboard: 37 keys (velocity compatible).