Take the ii chord from the parallel minor — half-diminished, carrying the b6 of the key — and resolve it straight home. Plagal motion with a bruise. Bossa and ballad writers adore it.
hear it in bossa ballads (the Jobim ache)
Lead-in — how players set it upSet up from 4 — the ø7 is 4's sadder understudy.From 1Δ7 — home first, then the borrowed ache.Or from 4-, its closest borrowed cousin, stacking the mist.Follow — where it usually goesHome lands soft; 6- keeps the ache going if you want it.Or send it to 5⁷ instead — now it's a true minor ii–V.Land and linger: 1Δ7 to 4Δ7, breathing room.
Over the 2ø⁷ the key's b6 is the ache — lean on it, then resolve down to 5 as the dominant arrives.Target tones (in C)F — lean on A (3)Dm7♭5 — lean on F (b3) · C (b7)Cmaj7 — lean on E (3) · B (7)Half-step wiresA ↘ Ab · F ↘ E · Ab ↘ G