models of clarinet, reminiscent of many Albert system clarinets and more and more some higher end Boehm system clarinets, the register key is a 'wraparound' key, with the key on the back of the clarinet and the pad on front. Advocates of the wraparound check in key say it improves sound, and it is more complex for moisture to purchase in the tube under the pad. Nevertheless, there's a consensus among repair techs that this type of sign up key is harder to maintain in adjustment, i. e. , it is tough to have enough spring force to shut the outlet securely. The body of a stylish soprano clarinet is in a position with a large number of tone holes of which seven six front, one back are coated with the fingertips, and remainder
are opened or closed using a set of keys. These tone holes let the player produce every note of the chromatic scale. On alto and larger clarinets, and a few soprano clarinets, key covered holes replacement some or all finger holes. The most standard system of keys was named the Boehm system by its dressmaker Hyacinthe Klosé in honour of flute designer Theobald Boehm, but it's not a similar as the Boehm system used on flutes. The other main system of keys is termed the Oehler system and is used mostly in Germany and Austria see History. The associated Albert system is used by some jazz, klezmer, and japanese European folk musicians.