The PS-20 is a versatile vintage analog synth that is compact and portable. This rare keyboard features ‘Auto Bass Chord’ accompaniment, 49 keys and a built-in speaker. There’s an ‘Auto Rhythm’ section with percussion from disco to waltz, with adjustable tempo, and also a sustain switch. ‘Orchestra’ sounds include harpsichord, vibraphone and piano and ‘Solo’ sounds range from guitar to saxophone. The 1980s synth has 10 note polyphony, and is popular with makers of ‘dream pop’ such as Beach House and Lilies on Mars, who really rate its organ sounds.