United States or Djibouti ? Vote for the TOP Country of the Week !
In the diatonic, there are two consecutive tones, and the third interval of a semitone completes the tetrachord. Hence, in the three classes, the tetrachords are equally composed of two tones and a semitone, but when they are regarded separately according to the terms of each class, they differ in the arrangement of their intervals.
It was about the time of Pythagoras that a scheme of tetrachords which did not overlap was adopted. In Persia and Arabia was obtained a perfect system of intonation. The Chinese system is minutely exact in theory, bombastic in fancy. The Hindus sedulously avoided applying mathematics to their scales.
Word Of The Day