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

Because the chord G shares *all* of its notes with the chord G7. A triad is any chord composed of the following 3 notes: the tonic (which the chord is named after), a third (either major or minor), and a fifth. In the case of the G chord, these notes would be G, B, and D respectively. In the chord G minor, it would be G, Bb, and D. A seventh chord just means you add the minor seventh of the tonic to the top of the chord. The chord G7 has the notes G, B, D, and F. See how it’s almost the same as the standard triad?

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