Modulation
Shifting from one key to another within a song.
Why it matters
That moment a song suddenly feels like it “lifted” — often on a final chorus — is usually a modulation.
Used in a sentence
Digging deeper
A song sets up one note as home, then partway through picks a new home and commits to it. Everything after that measures against the new center — which is why a final chorus can suddenly feel lifted even though nobody started playing louder.
Common questions
Is every chord from outside the key a modulation?
No. Borrowing an outside chord for a bar and coming back is just color. It counts as a modulation only when the song's sense of home actually moves and then stays there.
Why does it feel like a lift?
Most pop modulations move up a step near the end, so every melody note sits higher and the singer has to reach for it. You hear the extra effort, and effort reads as lift.
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