Suzuki MDG-100 Micro Grand Digital Piano Keyboard: 88 key, advanced balanced graded hammer action, velocity sensitive Sound source: 3D and stereo deluxe instrument samples Polyphony: 64-note polyphony Preset tones: 128 GM (General MIDI voices) Function: Tune, Transpose, MIDI Functions, Demo, Chorus (8 types), Reverb (8 types), Song (Left Hand and Right Hand), Layer, Split, Upper, Lower, Arpeggio, One Touch, Auto Bass Chord (Fingered Single, Fingered, Piano Mode), Harmony (Duet, Arpeggio, Repeat), Synchro, Fill In 1, Fil