I’m often asked the best way to learn all 12 keys and while I’ve advocated many methods in the past, the most practical way is to adapt my “3 x 12” rule.
Simply put: Take 3 songs you know and learn them in all 12 keys.
It helps if they are songs that utilize a variety of different chords. That’s why picking 3 is important because between them, you should get a good mix of chords off every tone of the scale…
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