Relative major/minor

major scale係由d r m f s l t 組成，而minor scale係由 l t d r m f s l (natural minor)組成。所以要知道relative major/minor，首先要搵到 d 同 l 音。eg. G major, G 音係"d" ，要搵佢個 " l" 音，因為minor scale係由 "l" 音開始，亦即係呢個音階o既名稱，亦即係搵佢低一個minor 3rd(d -> t, -> l, 係minor 3rd)，G = d, F# = t, E = l,，"l"音係E位置，所以係E minor，換句話講，G major 同 E minor 係共用一個 key signature 所以佢地係relative major/minor o既關係。
major key同minor key o既關係可以參考以下個表。



Key signature

B♭, E♭, A♭, D♭, G♭, C♭, F♭
C flat major
A flat minor

B♭, E♭, A♭, D♭, G♭, C♭
G flat major
E flat minor

B♭, E♭, A♭, D♭, G♭
D flat major
B flat minor

B♭, E♭, A♭, D♭
A flat major
F minor

B♭, E♭, A♭
E flat major
C minor

B♭, E♭
B flat major
G minor

B♭
F major
D minor


C major
A minor

F♯
G major
E minor

F♯, C♯
D major
B minor

F♯, C♯, G♯
A major
F sharp minor

F♯, C♯, G♯, D♯
E major
C sharp minor

F♯, C♯, G♯, D♯, A♯
B major
G sharp minor

F♯, C♯, G♯, D♯, A♯, E♯
F sharp major
D sharp minor

F♯, C♯, G♯, D♯, A♯, E♯, B♯
C sharp major
A sharp minor

the relative minor of G Major-----E minor
i t's simple......
First, you have to find out the key
eg. G = d
then F = t
and E will be l
so it sould be E minor....
second, distinguish if it is E flat/ E/ E sharp