BONTEMPI CONCERTINO WITH SEQUENCER 32 Key (F-C"'), 80 note sequencer. Teacher and/or student may record a line or melody accompaniment and then play along with the music provided by the sequencer. Eight Voices-Organ, Brass, Clarinet, Flute, Accordion, Electric Guitar, Electric Piano, Carillon. Standard/Lower Transposer, Polyphonic (four notes can be played simultaneously, Metronome-Two sounds with speed control. Requires four "AA" Batteries (not included) or optional AC adapter. (Order 850063). 18.75" L with .75" key width.