C |
C# - Db |
D |
D# - Eb |
E |
F |
F# - Gb |
G |
G# - Ab |
A |
A# Bb |
B |
C |
So by example you can see that a song with the chords
G - Em - C - D is relatively same as C - Am - F - G but in the key of C rather that the key of G
A- -D - E7 is relatively the same as G - C - D7 or C - F - G7 or E - A - B7 or F# - B - C#7
Have fun with this simple math trick and soon you will be able to do a transposition on the fly.
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