Also F Major (Ionian), G Dorian
D Natural minor (Aeolian): D E F G A B♭ C. Formula 1 2 ♭3 4 5 ♭6 ♭7. Same notes as F Major (Ionian), G Dorian, A Phrygian. The natural minor scale: sad and serious, the basis of minor keys in rock, pop and classical music.