Why Is It Useful to Know Relative Major and Minor Scales?
The main reason to know the relation between major and minor scales is it makes memorizing a lot of essential things in music easier. You only have to memorize 12 scales to know all 24 keys used in music. If you’ve studied the circle of fifths in the harmony section, you’ll notice the relative minor scales listed right beneath the major scales. They’re the same set of notes and have the same key signature. Not only are the notes the same between relative scales, but so are the diatonic chords. You’ll also see that many songs bounce back and forth between the major key and its relative minor or vice versa. So, knowing the scale relations will really simplify memorizing a lot of essential stuff, and help you understand keys, chord progressions and songs better.
