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,
Heptatonic scale Heptatonic scale A heptatonic scale is a musical scale that has seven pitches per octave. Examples include the "major scale" or "minor scale"; e.g., in C major: C D E F G A B C—and in the relative minor, A minor, natural minor: A B C D E F G A; the "melodic minor scale", A B C D E FGA ascending, A G F E D C B A descending; the "harmonic minor scale", A B C D E F GA; and a scale variously known as the "Byzantine", and "Hungarian", scale, C D E F G A B