When we combine harmonious intervals to create chords, there are various conventions we follow (consciously or otherwise) to avoid unpleasant dissonances. Here, we’re going to do no such thing! We ...

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Johnny Cash's Hurt hits way different in A Major, as much so as Ring of Fire in G Minor. The dissonance in tone between the chords is, ahem, a minor one: simply the third note lowered to a flat. But ...