Song lyrics structure formatter
AI music tools like Suno and Udio don’t just read your words — they read the
section tags around them. A bracketed [chorus] tells the model to lift the
energy and repeat a hook; [bridge] signals a contrast section. Pasting raw
lyrics with no tags leaves the model to guess, which is why songs come out
structurally flat. This formatter wraps your lyric blocks in the correct tags and
checks the arrangement makes sense.
How it works
The tool splits your input into sections by blank lines — each block of consecutive non-empty lines is one section. You pick a structure template (a common arrangement like verse–chorus–verse–chorus–bridge–chorus), and the formatter assigns the matching tag to each block in order, cycling sensibly if you have more blocks than the template. It then runs a quick validation: it warns if there’s no chorus, if you have only one section, or if the block count doesn’t fit the template, since those are the most common reasons Suno ignores structure.
Tips for clean structure
- One blank line between sections. That’s the delimiter — extra blank lines are collapsed.
- Always include a chorus. It’s the repeated hook; without a
[chorus]tag, the song often meanders. - Use [instrumental] for breaks. An empty section tagged instrumental gives the model room for a solo or drop.
- Keep verses similar in length. Wildly uneven blocks can throw off timing — trim or split before formatting.