iisus roman degree
The suspended predominant — a ii with the 4th instead of the 3rd, erasing its minor colour for a moment and leaving it open on the way to the dominant.
Where it lives
2semitones from the tonic
Major mode
suspended
Hear it in context: I-iisus-ii-V
Piano sound loads on first tap. Resolved in the key of C — every chord links to its full analysis.