TAC Family Forums

It depends on what cord shapes you want to use. For example, if I like the cord shapes in the key of G, but the song is in the key of B, I would need to put the capo on the fourth fret.

The G chord is rooted on the 3rd fret 6th string. I need to move the chord shape until that G is now a B, which is 4 frets.

So, you pick the key that has the chord shapes you like, take the chord that key is based on, and move that chord until the root note is the root of the key you want. Count how many frets you moved, then put the capo that many frets up from the nut.