Relative Minor

One way of looking at it –

Take a Major Scale, lets say C. The notes in the scale are –

C D E F G A B C

Start from the sixth note, that is A and play all the notes from there on, following the same pattern

A B C D E F G A

This is the Relative Minor of the C Major Scale. This also happens to be A Minor (Natural)

Another way is to use a rule that goes like this –

Pick the scale for which you want a Natural Minor, take its root note and then use this rule –

Go back one tone and one semi tone from the Root node on the Chromatic Scale to find the relative minor of the scale.

The Chromatic Scale is – C C# D D# E F F# G G# A A# B

Now, the relative minors of the scales.

C -> Am

D -> Bm

E -> C#m

F -> Dm

G -> Em

A -> F#m

B -> G#m

C# -> A#m

D# -> Cm

F# -> D#m

G# -> Fm

A# -> Gm