ivsus roman degree
The suspended minor subdominant — the 4th floats over the borrowed iv, softening its bittersweet plagal colour before it resolves.
Where it lives
5semitones from the tonic
Minor mode
suspended
Hear it in context: i-ivsus-Vsus-i
Piano sound loads on first tap. Resolved in the key of C — every chord links to its full analysis.