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