In music theory , minor scale may refer to : The natural minor scale follows the sequence of steps : In semitones , this is If the white keys on the piano are played beginning on the sixth step of the C major scale , which is A , to the A an octave above , then a natural minor scale is produced .
If the white notes are played starting from the sixth step of that C scale , ( from any A to the next A ) , then an A natural minor scale ( the `` relative minor '' of C ) is produced .