Song structure builder
Build a song's sections once, with bars, energy and vocals for each, and get it written the way each of seven AI music generators takes a song's structure: section tags, cues, a timed plan, timestamps or a sentence with a length. It runs in your browser: nothing is sent anywhere.
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What does each platform take?
Each form is the one the platform's own pages show, and exactly what APMonster writes:
- Suno: section tags in the lyrics box.
- Eleven Music: a section plan in the prompt, each section with a length.
- Lyria 3.5: timestamped segments in the prompt.
- Stable Audio 3: a sentence describing the arc, with the length as a setting.
- EasyMusic: section tags with one or two cues, in the lyrics box.
- Loudly: a sentence describing the arc, with the length as a setting.
- Udio: section tags in the lyrics box.
How are the lengths worked out?
Each section's length comes from its bars at your tempo, 4 beats to a bar; with no tempo, 120 BPM is assumed. Where a platform has its own limits, such as a longest song or a shortest section, the notes under its form say what was changed.
Why one song, written seven ways?
Every generator reads a song's shape differently, and most guides cover one. This builder writes one arrangement for all of them at once, so you can take the same song from one platform to another. The comparison sets the forms side by side, with the sources.
Frequently asked questions
Does the builder send my song anywhere?
No. It runs in your browser; nothing is sent or stored, so a reload starts again from the example song.
How do I mark an instrumental section?
Choose Instrumental in the section's vocals. Udio gets an instrumental tag from its own list, EasyMusic, Eleven Music and Lyria mark the section instrumental, and for Suno, whose section tags carry no description, the notes give a Song Editor step instead.
Can I use the result in Suno?
Yes: Suno's form is section tags for its Lyrics box. Write your lines under each tag, or let APMonster's LyrAssist write them.