A professional-quality German-made piano accordion featuring 37 treble keys, 96 bass buttons, 3 treble reed ranks and 7 treble registers. The Topas III offers a broad tonal range and warm, powerful sound, making it suitable for classical, contemporary, jazz and ensemble playing. Weighing approximately 9.7 kg, it offers a good balance between full-size capability and manageable weight. Specifications: Treble Keys: 37 Treble Reed Ranks: 3 (LMM) Treble Registers: 7 Bass Buttons: 96 Bass Reed Ranks: 4 Bass Registers: 3 Dimensions: 442 x 192 mm