Alfred Arnold Bandoneon 128 tone with 34 buttons on the right and 29 on the left. It is octave tuned (LM) on the left hand and unison tuned (MM) on the right hand. In very good cosmetic condition and excellent playing condition. Fully tuned by me in May 2011. It comes with a wooden case which has seen some wear but is still sound and practical. Please listen to the Soundcloud recording to hear how it sounds.