An AI copywriter for sung ad copy: a hook, benefit lines and a CTA that scans

Headline copy can be dense. Sung copy cannot. A line has to fit a breath, land its stress on the beat and still make sense heard once at speed. That rules out stacked adjectives, long product names and anything with a footnote. Strong sung lines are pictures: "my coffee's cold by the second email" does more than "stay energized all day".

Sung copy also gets heard many times by the same person, which flips a copywriting rule. On a page, repetition is padding. In a chorus, it is the point, as long as what repeats is the one idea you want remembered.

• Opens on the hook you chose from the brief, in the buyer's own words, without the product name.
• Writes one line per claim, using only the claims the brief kept from your page.
• Sings the brand name at most three times, in the chorus and the call to action.
• Fits the line count to the length you chose, so nothing has to be rushed.
• Ends on the call to action.

Rewriting the brief or the lyrics costs nothing; you pay credits when the song is made. How long each length runs, and how many lines it holds, is on 15, 30 and 60 second jingles.

• Count syllables. Lines in the same section should be within a syllable or two of each other.
• Say it out loud at speed. If you trip, the singer will too.
• End lines on open sounds. "Day", "go", "home" hold a note; "crisp" and "text" do not.
• Cut the second benefit in a line. One idea per line, every time.
• Keep the hook ugly and true. The specific, slightly embarrassing confession beats the polished one.
• Leave the name where it is. Moving it into the verses adds mentions, and it is capped at three. If it sounds wrong, fix the sung spelling with brand name pronunciation rather than moving it.

The writer never adds reviews, ratings, prices or promises your page does not make, and any health, money, result or comparison claim is flagged for you to check before the song is made. If you type a line like that yourself, make sure the page backs it. The full logic is on claims from your page.

Each sung line becomes one shot in the storyboard, and the lyrics become the captions. So a line that paints a picture ("the cable's tangled round the chair again") gives the storyboard something to draw. A line that is pure abstraction ("feel the difference") gives it nothing, and the frame will be generic. If a line is hard to picture, rewrite it before the song is made.