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Theory · in A

Intervals

Distance from the root. In A, R = A, b3 = C, 3 = C#, 5 = E, b7 = G.

Learn each one as a shape you can find from a root note, not as a list of note names.

Formula In A
Distance from the root R = A, b3 = C, 3 = C#, 5 = E, b7 = G

On the guitar. Know where b3, 3, 5 and b7 sit around a root on the E and A strings.

Drill. Pick a root, point to each interval without playing a scale.