These small piano accordions are ideal for those musicians wanting the versatility of a piano keyboard but a smaller lighter instrument than the 120 bass "Lady of Spain" monsters! The ACC219 is the 4 X 12 bass layout, which has all chromatic pitch classes but only the bass row, counterbass, major and minor chords. This is the setup if you wish to play in any or all keys, but do not need seventh or diminished chords from the left hand. Includes a hard case and straps. Length 40cm, Width 38cm, Height 18cm. Weight approximately 6.1Kg (13.5 pounds)