accordion 21 key/8 bass Instrument sounded by means of a keyboard (a series of keys played with the fingers). The most commonly recognized keyboard instruments are the piano, organ, harpsichord and synthesizer, a recent invention. ...

button hexagonal accordion with 6 angles and 15 button reeds popular in western European countries.  button  hexagonal accordionsize: 58 × 44 × 48   cmpattern: 6 angles with 15 buton reedsconstruction: chromatic type.colour:...