This is an ABS bass (F) recorder with baroque fingering system and design created to mimic the qualities of an expensive hand-crafted wooden model. It features very accurate intonation. In addition to the more common soprano and alto recorders, ensembles often call for other keys such as tenor, bass, and even 'Great' bass recorders. Yamaha offers a full line of top quality tenor and bass recorders in both ABS resin and natural wood materials. Yamaha's Great Bass recorder plays with a surprisingly effecient balance between air and broad focused sound.