natural trumpet

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natural trumpet (Ger. Naturtrompete). A tpt. without crooks which can produce only notes of the harmonic series of its fundamental note. From 17th cent. to late in the 19th, crooks were used, i.e. additional lengths of tubing which lowered the pitch of the fundamental note and thus of the whole harmonic series. However, crooks could not be very quickly changed, removed, or inserted. In his Pastoral Symphony (1921), Vaughan Williams requires use of the natural tpt.