bVII7 roman degree
The 'backdoor' dominant — a major-7th chord on bVII that resolves UPWARD to I, a warm, unexpected cadence borrowed from jazz.
Where it lives
10semitones from the tonic
Major mode
dominant 7th
Hear it in context: Backdoor Cadence
Piano sound loads on first tap. Resolved in the key of C — every chord links to its full analysis.