YAMAHA KEYBOARD PORTASOUND PSS-140

37 midsize keys

Polyphony 6 notes (only 2 with accompaniment)

Built-in thin sounding speaker

100 preset sounds (ordered alphabetically, selected through {“0”..”9″} cipher buttons + “enter”)

10 OBS preset rhythms {8 beat, 16 beat, tango, samba, swing, bossa nova, march, disco, 12 beat, waltz}

Tempo +/- buttons  (16 steps)

Volume +/- buttons (11 steps, reduce bit resolution badly)

5 rubber drumpads

5 percussion sounds {closed cymbal, open cymbal, conga, snare, base} of classic electronic FM style

Single finger chord (manual chord mode with rhythm off)

Sound generator based on 2 operator FM

Demo button (mellow pop music loop, cycles through many sounds & rhythms)

Jacks for AC- adapter and sound output