players blow through a bamboo reed placed on top of the instrument and the air stream produced is passed over an airhole atop the instrument.
Kaynak: Tumpong

seem to work just as well as the original ones; the principal difference include the lack of an airhole in the nose and a different headlight.
Kaynak: D19E

cultivating a more free-flowing vocal style — he noticed that Dorsey used a tiny airhole at the side of his mouth to sneak breaths when playing.
Kaynak: Frank Sinatra's recorded legacy