at+intervals
41Pythagorean interval — In musical tuning theory, a Pythagorean interval is a musical interval with frequency ratio equal to a power of two divided by a power of three, or vice versa. For instance, the perfect fifth with ratio 3/2 (equivalent to 31/21) and the perfect… …
42Inversion (music) — For non musical meanings of inversion , see Inversion (disambiguation). Inversion example from Bach s The Well Tempered Clavier[1] …
43tuning and temperament — In music, the adjustment of one sound source, such as a voice or string, to produce a desired pitch in relation to a given pitch, and the modification of that tuning to lessen dissonance. Tuning assures a good sound for a given pair of tones;… …
44Quartal and quintal harmony — In music, quartal harmony is the building of chordal and melodic structures with a distinct preference for intervals of fourths . (.Use of the term arises from a contrast, compositional or perceptual, with traditional tertian harmonic… …
45Meantone temperament — is a musical temperament, which is a system of musical tuning. In general, a meantone is constructed the same way as Pythagorean tuning, as a stack of perfect fifths, but in meantone, each fifth is narrow compared to the ratio 27/12:1 in 12 equal …
46Tritone — For other uses, see Tritone (disambiguation). tritone Inverse tritone Name Other names augmented fourth, diminished fifth Abbreviation TT Size …
47Chord names and symbols (jazz and pop music) — CΔ7, or major seventh chord on C  Play ( …
48μ-law algorithm — Companding of μ law and A law algorithms The µ law algorithm (often u law, ulaw, or mu law) is a companding algorithm, primarily used in the digital telecommunication systems of North America and Japan. Companding algorithms reduce the dynamic… …
49Perfect fifth —  Play (help· …
50Chord (music) — Instruments and voices playing and singing different notes create chords. This article describes pitch simultaneity and harmony in music. For other meanings of the word, see Chord. A chord in music is any harmonic set of two–three or more notes… …
