**0:00–0:05 — Pickup and immediate lock**

After a brief blank lead-in, the band enters already organized: drums, piano, bass, and horns set the song’s fixed pocket before the first full vocal claim. There is no long introduction; the form’s job is to get the refusal moving almost at once.

**0:05–0:39 — Opening chorus proves the hook**

Winehouse begins with the central “no,” and the arrangement treats it as the song’s main contract rather than a later payoff. The groove stays even and light, so the lyric’s defiance is not dramatized by a break; it is normalized by repetition. The chorus establishes the tune as something that will return by force of pattern.

**0:39–1:38 — Verse material narrows the story**

The first verse turns from slogan to explanation: home, records, school, bottles, doctors. The band does not loosen around the added detail. Its steady motion keeps the autobiographical scene moving forward while the vocal line supplies the shifts in attitude, from casual dismissal to sharper self-knowledge.

**1:38–2:17 — Chorus return reloads the same answer**

When the chorus comes back, it does not need to expand much; its function is confirmation. The earlier hook is tested against the verse’s added context and still lands in the same compact shape. The music matches the lyric here by refusing a detour.

**2:17–2:52 — Bridge opens a crack without breaking form**

The middle stretch changes the lyric’s angle: wanting not to drink, needing a friend, waiting out tears. The words soften, but the arrangement keeps the same disciplined forward motion, so the vulnerability is contained rather than allowed to stop the song. This section delays the final return by letting uncertainty pass through the fixed groove.

**2:52–3:31 — Final chorus and cutoff**

The last chorus restores the public answer and carries it into the ending without a large climax. The pattern holds until it simply lets go near 3:27, followed by a short terminal silence. The form is built on returns: each explanation changes the light around the hook, but not the hook’s decision.