Beltuna Alex III, three voice LMM 2.5 row 12 bass in cherry with swing tuned Artigiana tipo a mano reeds. There are four push button couplers on the bass end to control thirds and low bass. On the treble side there are three switches behind the keyboard which allow the voicing to be changed during play. This is a lovely instrument with a rich full tone and full rounded and well balanced basses. Includes a top quality hard case and straps.