hired the principles of Theobald Boehm. The clarinets in B flat and A are the regular orchestral gadgets. The higher, shriller E flat clarinet is also a band instrument and is used on occasion in the orchestra. Of the larger clarinets, the B flat bass clarinet is probably the most important. The E flat alto and the E flat contrabass clarinets are mainly band instruments. Clarinets were once made in other
keys, but all of those
gadgets are now out of date.