|Modes||I, II, III, IV, V, VI, VII|
|C, D, E?, F, G?, A?, B?|
|Number of pitch classes||7|
The half diminished scale is a musical scale more commonly known as "Locrian ?2", name which avoids confusion with the diminished scales (see octatonic scales) and the half-diminished seventh chord (minor seventh, diminished fifth). It may be considered mode VI, the sixth mode, of the ascending melodic minor scale. See: jazz scale.
The half diminished scales, although derived from classical scales, offer new potentials in modern harmonic and melodic structure.[clarification needed]