The I-#io-ii-V progression I-#io-ii-V
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
ICmaj
Feels like home — complete rest, where the piece departs from and returns to. The major tonic, where everything settles.
#ioC#dim
A chromatic passing diminished chord on the raised tonic — it links I to ii by sliding a voice up a half step. A colour of transit, not of rest.
iiDm
The predominant par excellence — a soft minor leaning toward the dominant. It's the first step of the classic ii–V–I.
VG7
Tension pulling home — the chord that 'wants to resolve' to I; it closes or opens sections. The dominant, the engine of the key.