The tone of the B-flat bass clarinet is an octave below the soprano clarinet Bass clarinets are known to have existed back to 1772 When Aldolphe Sax remodelled it with the metallic upturned bell, it too gained popularity in 1839
A low-pitched member of the woodwind instrument family The bass clarinet is essentially a low clarinet, with the following stages of sound production: energy source: air vibrating element: single reed resonating chamber: the instrument's body