Why do musical chords that have a “7” in them, have the same kind of tone?

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I’m not sure how to explain it, every chord that has a 7 in it (which I’m still not sure what it means) sound the same, in a kind of way. Again, im not sure how to articulate it correctly. If anyone can help, I’d appreciate it!

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Anonymous 0 Comments

Certain chord progressions just naturally “go together”. In the key of G, the “other” chords in the progression are C and D (and Em).

A 7th chord is often used in music to “turn the corner” from the root chord, to the III chord five semitones higher than the root: G – G7 – C has us hearing the G note, adding F in the G7, and finally the E – which is the major third note of the C chord. It’s a familiar “walking down” of first two semitones, then one semitone, and that turning the corner sounds pretty much the same regardless of what key you are in.

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