Chromatic scale common conception of the chromatic scale before the 13th century was the Pythagorean chromatic scale (). Due to a different tuning technique, the twelve semitones in this scale have two slightly different sizes. Thus, the scale is not perfectly symmetric. Many other tuning systems, developed in the ensuing centuries, share a similar asymmetry. In Pythagorean tuning (3-limit just intonation) the chromatic scale is tuned as follows, with sharps higher than their enharmonic flats: These are 17-EDO Pythagorean tuning approximations. In 5-limit just intonation the chromatic scale, Ptolemy's intense chromatic scale, is as follows, with flats higher than their enharmonic sharps,
Istrian scale Istrian scale "Istrian scale" refers both to a "unique" musical scale and to the Istrian and Kvarnerian folk music genres which use the scale. It is named for the Istrian peninsula. Genres include "kanat" and "tarankanje"; techniques include nasal tone, variation and improvisation, and resolution to the unison or octave; and instruments include "sopele" shawms, bagpipes, flutes, and "tambura" lutes. It was first named by Ivan Matetić Ronjgov early in the twentieth century, assisting his study and notation of Croatian music. Non-equal-tempered, the scale could approximately be notated as: E-F-G-A-B-C [hexatonic] (see: enharmonic), the first six notes of an octatonic