Archive image from page 342 of The cyclopædia; or, Universal dictionary. The cyclopædia; or, Universal dictionary of arts, sciences, and literature cyclopaediaoruni36rees Year: 1819 TRUMPET. When the found of the trumpet is well managed, it is of oftaves, which is the limit of the ufual keys of fpinnets and a great compafs. Indeed its extent is not ftriftly determin- organs. able ; fince it reaches as high as the ftrength of tlie breath The ufual founds of the trmjipet are reprefented by tlic can force it. A good breath will carry it beyond four following mufical notes. I i 3â1 / , '4 i
Archive image from page 342 of The cyclopædia; or, Universal dictionary. The cyclopædia; or, Universal dictionary of arts, sciences, and literature cyclopaediaoruni36rees Year: 1819 TRUMPET. When the found of the trumpet is well managed, it is of oftaves, which is the limit of the ufual keys of fpinnets and a great compafs. Indeed its extent is not ftriftly determin- organs. able ; fince it reaches as high as the ftrength of tlie breath The ufual founds of the trmjipet are reprefented by tlic can force it. A good breath will carry it beyond four following mufical notes. I i 3â1 / , '4 i _i|__ There is an F In the coiimoii tnimpct unnoticed â I Dr5 bo P in this Scale. £g: -B- i Here the loudeft found being denoted by I, the pitch of the reft, or the number of their refpeftive vibrations, during the time that C vibrates once, will be exprefTcd by the numbers denoting the order of their founds, 2, 3, 4, 5, &c. The founds exprefled by the mufical numbers, tliat is, by 2, 3, 5, and their compofites, which are 4,. 6, 8, 9, 10, 12, 15, 16, are all perfeSly in tune; but the founds ex- prefled by numbers not mufical, as 7, 11, 13, 14, are falfe. Three of thefe, w's. Bb, its oftave, and A, dillinguiihcd by f placed over them, are too flat; and the remaining note F, marked with an S, is too ftiarp. See Musical Numlsrs. The reafon of whicli is, that Bb ought to be atone major below C : that is, its pitch to that of C will be as 8 to 9 ; but the proportion given by the trumpet is as 7 to 8 ; which being a lefs proportion than that of 8 to 9, it follows that B b will be too flat. The fame holds true of its oftave. And A being a tone minor above G, it ought to be to G as 10 to 9 : but in the trumpet, it is to G as 13 to 12 ; which being lefs than tJie proportion of 10 to 9, it follows that A will be too flat. On the other hand, F ought to be a femitone major above E ; that is, F ought to be to E as 16 to 15 ; but in the trumpet, F is to E as 11 to 10 ; wl
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