A Text-Book of Musical Theory, Forming PT. 1 of the Student's Text-Book of the Science of Music

A Text-Book of Musical Theory, Forming PT. 1 of the Student's Text-Book of the Science of Music

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 edition. Excerpt: ...further subdivision into subordinates of a second, and these into subordinate parts of a third degree, and so forth. 78. It is not requisite, nor indeed is it, except for purposes of special effect, in any way desirable, that measures should be uniformly composed of durationally the same kind and number of sounds. Provided its equivalent value be in every instance secured, it is a characteristic feature of the measure that it may consist of any species of sounds or of intervals of silence (denoted by rests, see Art. 150), or of both, and arranged in any order whatever. Hence the essential sounds of a measure (its principal parts, i.e.) may be superseded by equivalent groups of shorter aliquot sounds, such aliquot sounds constituting what are known as subordinate CHANGE OF MEASURE. 59 parts, or subordinate parts of the first degree; and these subordinate parts may be still further divided, and the parts resulting from this division also in their turn divided into other subordinate groups of respectively a second and a third degree, and so on, as far as convenient, the groups resulting from this process of subdivision of parts occupying most frequently either the binary or the ternary relation. Fig. 65 affords an example of this subdivision of parts, the original sound being successively replaced by subordinate groups of respectively a first, second, &c., up to a fifth degree. Compositions do not invariably begin with a complete measure. Accordingly, for purposes of measurement, the term measure is extended in signification to denote the equivalent for a measure, whatever sound thereof, whether first, second, &c., be selected as initial. (Arts. 97, 100.) 79. The durational value of a complete measure having been determined, it is...
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Product details

  • Paperback | 44 pages
  • 189 x 246 x 2mm | 95g
  • United States
  • English
  • black & white illustrations
  • 1236750713
  • 9781236750716