– 4 0 ▁c ents ▁of ▁pitch ▁adjust ment . ▁ ▁The ▁slow ▁air ▁chamber ▁has ▁a ▁mouth pie ce ▁and ▁breath ▁hole ▁for ▁the ▁player ' s ▁breath . ▁Air ▁flows ▁through ▁the ▁slow ▁air ▁chamber ▁and ▁up ▁the ▁r amp , ▁through ▁the ▁exit ▁hole , ▁and ▁into ▁the ▁fl ue . ▁ ▁The ▁slow ▁air ▁chamber ▁can ▁serve ▁as ▁a ▁secondary ▁reson ator , ▁which ▁can ▁give ▁some ▁fl utes ▁a ▁distinct ive ▁sound . ▁ ▁The ▁sound ▁chamber ▁contains ▁the ▁sound ▁hole , ▁which ▁creates ▁the ▁v ibration ▁of ▁air ▁that ▁causes ▁sound ▁when ▁the ▁air flow ▁reaches ▁the ▁splitting ▁edge . ▁The ▁sound ▁hole ▁can ▁also ▁be ▁called ▁the ▁wh ist le ▁hole , ▁the ▁window , ▁or ▁the ▁true ▁sound ▁hole ▁(" T SH "). ▁The ▁splitting ▁edge ▁can ▁also ▁be ▁called ▁the ▁cutting ▁edge , ▁the ▁fi pp le ▁edge , ▁the ▁lab ium , ▁or ▁the ▁sound ▁edge . ▁ ▁The ▁sound ▁chamber ▁also ▁has ▁finger ▁holes ▁that ▁allows ▁the ▁player ▁to ▁change ▁the ▁frequency ▁of ▁the ▁v ibr ating ▁air . ▁Ch anging ▁the ▁frequency ▁of ▁the ▁v ibration ▁changes ▁the ▁pitch ▁of ▁the ▁sound ▁produced . ▁ ▁The ▁finger ▁holes ▁on ▁a ▁Native ▁American ▁fl ute ▁are ▁open , ▁meaning ▁that ▁fingers ▁of ▁the ▁player ▁cover ▁the ▁finger ▁hole ▁( r ather ▁than ▁metal ▁le vers ▁or ▁p ads ▁such ▁as ▁those ▁on ▁a ▁clar inet ). ▁This ▁use ▁of ▁open ▁finger ▁holes ▁class ifies ▁the ▁Native ▁American ▁fl ute ▁as ▁a ▁simple