. . . . "1057856093"^^ . "Crook (music)"@en . . "--05-22"^^ . . . . . . . . "\"Nelson \""@en . . . . . "Humphries, John . The Early Horn. A Practical Guide. Cambridge, UK: Cambridge University Press. ."@en . "\"Humphries \""@en . "A crook, also sometimes called a shank, is an exchangeable segment of tubing in a natural horn (or other brass instrument, such as a natural trumpet) which is used to change the length of the pipe, altering the fundamental pitch and harmonic series which the instrument can sound, and thus the key in which it plays."@en . "A crook, also sometimes called a shank, is an exchangeable segment of tubing in a natural horn (or other brass instrument, such as a natural trumpet) which is used to change the length of the pipe, altering the fundamental pitch and harmonic series which the instrument can sound, and thus the key in which it plays."@en . . . . . . . "\"Apel \""@en . . . . . . "--05-30"^^ . . . . "\"Edinburgh\""@en . . . "3251758"^^ . . . . . "Apel, Willi, ed. . Harvard Dictionary of Music . Cambridge, MA: The Belknap Press of Harvard University Press."@en . . . . "10516"^^ . . . . . . . .