The Firotti Eroica chromatic button accordion is a vintage instrument with 120 bass buttons and 47 treble keys. It is a traditional size black accordion perfect for folk and world music enthusiasts. The set includes a case for easy transportation and storage. With its classic design and high-quality craftsmanship, the Firotti Eroica is a sought-after choice for musicians looking for a durable and versatile instrument. REGISTERS TREBLE/BASS: 11+3 A budget accordion made in East Germany. Not perfect but very usable for a budget price. 4 sets of reeds in each hand. The right side has 16′, 8′,8′ and 4′ sets of reeds no cassotto and has a medium tremolo tuning. Belts but no case.