Chromatic scale and new notes between E/F and B/C: The fractions and , and , and , and , and many other pairs are interchangeable, as (syntonic comma) is tempered out. These are 19-EDO just intonation approximations. The ancient Chinese chromatic scale is called "Shí-èr-lǜ". However, "it should not be imagined that this gamut ever functioned as a scale, and it is erroneous to refer to the 'Chinese chromatic scale', as some Western writers have done. The series of twelve notes known as the twelve "lü" were simply a series of fundamental notes from which scales could be constructed." The Indian solfège,
Tritonic scale Tritonic scale A tritonic scale is a musical scale or mode with three notes per octave. This is in contrast to a heptatonic (seven-note) scale such as the major scale and minor scale, or a dodecatonic (chromatic 12-note) scale, both common in modern Western music. Tritonic scales are not common in modern art music, and are generally associated with primitive music. Early Indian Rig Vedic hymns were tri-tonic, sung in three pitches with no octave: Udatta, Anudatta, and Swarita. In a 1969 study, Mervyn McLean noted that tritonic scales were the most common among the Maori tribes he surveyed, comprising