akustiline resonaator kaheharulise kahvli kujul, mille harud (piid) on moodustatud elastse metalli (tavaliselt terase) U-kujulisest ribast, acoustic resonator in the form of a two-pronged fork with the prongs (tines) formed from a U-shaped bar of elastic metal (usually steel), U-kujuline terashark kindla sagedusega heli tekitamiseks, concert pitch is the pitch reference to which a group of musical instruments are tuned for a performance, helisageduse tugiviite kehastus, mille järgi etenduse jaoks häälestatakse muusikariistad