Yamaha PS-3 PortaSound Analog KeyboardNotes The Organ, Flute, Strings, & Guitar Voices do not produce any sound. The Brass Voice is inconsistent, & only produces sounds half of the time. The Original hard Case is included. A Yamaha PS 3 PortaSound Analog Keyboard in Good condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too.