The hypodorian mode, literally meaning 'below dorian', is a musical mode or diatonic scale of ancient Greece that was based upon the doriantetrachord: a series of rising intervals of a semitone followed by two whole tones. The rising scale for the octave is a single tone followed by two conjoint dorian tetrachords. This is the same as playing all the white notes of a piano from A to A: A | B C D E | (E) F G A. Confusingly, this scale in mediaeval and modern music theory came to be known as the aeolian or minor mode.
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