| 单词 | half-valving | 
| 释义 | half-valvingn. Music (chiefly Jazz).   The action or technique of playing a note on a valved brass instrument by depressing the piston or key to half of its full depth, thus opening the valve only partially, producing a sound of somewhat indeterminate pitch with a characteristic nasal quality. Cf. half-valve n.The technique is used esp. by jazz trumpeters to produce effects such as glissandos, trills, and vibratos. ΘΠ society > leisure > the arts > music > performing music > playing instruments > playing wind instrument > 			[noun]		 > playing horn > technique half-valving1953 1953    Pop. Sci. Feb. 158/2  				To obtain this effect with a standard instrument a musician must be skilled in ‘half-valving’ or ‘lipping’. 1975    Black World Apr. 97/2  				Marvelous half-valving and brassy belches leading to a rapid unison theme that..opens solos for the trumpet. 2011    J. Reynolds Trumpet for Dummies xvii. 279  				A small amount of half-valving gives you the indeterminacy of pitch to ease your way up into the note. This entry has been updated (OED Third Edition, December 2022). > as lemmashalf-valving   half-valving  n. ΚΠ 1956    S. Traill Play that Music viii. 87  				Some players achieve a sort of ‘blue note’ effect by ‘half-valving’, which would mean, in our particular example, pressing the middle valve (for a correct E♭) half down. The distortion of tone which this produces is not very attractive, and I would discourage ‘half-valving’ altogether. < as lemmas  | 
	
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