The player’s breath is directed against a lamella or pair of lamellae which periodically interrupt the airflow and cause the air to be set in motion.
422 Reed aerophones
422.1 Double reed instruments – There are two lamellae which beat against one another.
422.11 Oboes having only a single reed.
422.111 Reed instruments having a singular bore.
422.111.1 Reed instruments without finger-holes.
422.111.2 Reed instruments with finger-holes.
422.112 Reed instruments with a conical bore – Oboe, bassoon.
422.12 Sets of oboes.
422.121 Reed Instruments with a cylindrical bore.
422.122 Reed instruments with a conical bore.
*** Single Reed Instruments ***
422.2 Single reed instruments – The pipe has a single ‘reed’ consisting of a percussion lamella.
422.21 Single clarinets.
422.211 With cylindrical bore.
422.211.1 Single-Reed instruments without finger-holes.
422.211.2 Single-Reed instruments with keys, such as the clarinet this includes the Boem System [clarinets in b-flat or clarinets tuned in G par Turkish and Balkan, Greek and occasionally in Klezmer etc.
422.212 Single-Reed instruments with a conical bore – such as the saxophones, taragato etc
422.22 Sets of clarinets.
422.3 Reed-pipes with free reeds – The reed vibrates through at a closely fitted frame. There must be finger-holes, otherwise the instrument belongs to the free reeds
422.31 Single pipes with free reed.
422.32 Double pipes with free reeds