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GCA

(Encyclopedia)GCA, ground-controlled approach: see instrument-landing system. ...

flute

(Encyclopedia)flute, in music, generic term for such wind instruments as the fife, the flageolet, the panpipes, the piccolo, and the recorder. The tone of all flutes is produced by an airstream directed against an ...

oboe

(Encyclopedia)oboe ōˈboi, hōˈ– [key], woodwind instrument of conical bore, its mouthpiece having a double reed. The instruments possessing these general characteristics may be referred to as the oboe family, ...

ophthalmoscope

(Encyclopedia)ophthalmoscope ŏfthălˈməskōpˌ [key], instrument used for examining the inner structure of the eye. The device was invented by the German physiologist H. L. F. von Helmholtz in 1851. His model co...

odometer

(Encyclopedia)odometer ōdŏmˈĭtər [key], instrument provided in an automotive vehicle to indicate the total number of miles that have been traveled. The odometer generally shares a housing with the vehicle's sp...

Poulenc, Francis

(Encyclopedia)Poulenc, Francis fräNsēsˈ po͞olăNkˈ [key], 1899–1963, French composer and pianist. He was one of Les Six, a group of French composers who subscribed to the aesthetic ideals of Erik Satie, whos...

cheng

(Encyclopedia)cheng chĕng, jĕng [key], Chinese stringed instrument similar to the zither. It is also spelled jeng and tseng. ...

lyre

(Encyclopedia)lyre, generic term for stringed musical instruments having a sound box from which project curved arms joined by a crossbar. The strings are stretched between the crossbar and the sound box and are plu...

kithara

(Encyclopedia)kithara sĭthˈ– [key], musical instrument of the ancient Greeks. It was a plucked instrument, a larger and stronger form of the lyre, used by professional musicians both for solo playing and for th...

tablature

(Encyclopedia)tablature tăbˈləcho͝or [key], in music, a generic system of musical notation indicating actions that the player must take, rather than “representing” the music itself that will result from tho...