The ii-#iio-iii-vi progression ii-#iio-iii-vi
Level: AdvancedMode: major
Piano sound loads on first tap. Resolved in the key of C — every chord links to its full analysis.
What each degree does
iiDm
The predominant par excellence — a soft minor leaning toward the dominant. It's the first step of the classic ii–V–I.
#iioD#dim
A chromatic passing diminished chord — a bridge between ii and iii, raising an inner voice by a half step to link two diatonic degrees with no functional weight of its own.
iiiEm
The mediant — the most ambiguous, ethereal diatonic degree, halfway between tonic and dominant. It shares notes with both and never quite commits — dreamy.
viAm
The relative minor — the tonic's reflective shadow. It often replaces I in a deceptive cadence, where you expected home and its sad side arrives instead.

