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A form of microtone known as the blue note is an integral part of rock music and one of its predecessors, the blues. The blue notes, located on the third, fifth, and seventh notes of a diatonic major scale, are flattened by a variable microtone. [100]
Kurd – Also the Phrygian Scale Kurd , Hijaz Kar Kurd (حجاز كار كرد), Lami (لامي) Nahawand – Also the Minor Scale Farahfaza ( فرحفزا ), Nahawand ( نهاوند ), Nahawand Murassah ( نهاوند مرصّع or نهاوند مرصع ), ‘Ushaq Masri ( عشاق مصري ), Sultani Yakah ( سلطاني ياكاه )
In the quarter-tone scale, also called 24-tone equal temperament (24-TET), the quarter tone is 50 cents, or a frequency ratio of 24 √ 2 or approximately 1.0293, and divides the octave into 24 equal steps (equal temperament). In this scale the quarter tone is the smallest step.
Medieval Europe was the lone exception to this rule, developing harmonic music in the 14th/15th century as musical culture transitioned form sacred music (meant for the church) to secular music. [119] South Asian and West Asian music were similar to each other for their use of microtone.
Wilson would commonly use 10-squares-to-the-inch graph paper. That way, he had room to notate both ratios and often the scale degree, which explains why he didn't use a template where all the numbers where divided by 2. The scale degree always followed a period or dot to separate it from the ratios. Examples: One dimensional Pythagorean tuning ...
Some fixed just intonation scales and systems, such as the diatonic scale above, produce wolf intervals when the approximately equivalent flat note is substituted for a sharp note not available in the scale, or vice versa. The above scale allows a minor tone to occur next to a semitone which produces the awkward ratio 32:27 for D→F, and still ...
Scelsi employed them for much of his career, including in his last large-scale work, Pfhat (1974), which premiered in 1986. [80] They are found in works of Schnittke's ranging from the Quintet for Piano and Strings (1972–1976), where "microtonal strings fin[d] tone clusters between the cracks of the piano keys", [ 81 ] to the choral Psalms of ...
The Pythagorean comma shown as the gap (on the right side) which causes a 12-pointed star to fail to close, which star represents the Pythagorean scale; each line representing a just perfect fifth. That gap has a central angle of 7.038 degrees, which is 23.46% of 30 degrees. The size of a Pythagorean comma, measured in cents, is