01
Prompt generation
Start with a title and concise inspiration prompt for quick, open-ended song exploration without preparing a full lyric sheet.
ACE-Step 1.5 Turbo available in CAVN
ACE-Step AI music generatorShape a song with musical controls, not just adjectives
ACE-Step is useful when a creative brief includes concrete musical decisions. Alongside prompt generation, CAVN exposes a custom workflow for lyrics, BPM, key, time signature, vocal language, and instrumental mode.
1.5
Turbo model used for this sample
30-300
supported BPM range
16
vocal language options exposed by CAVN
Generated with ACE-Step
Real CAVN API output · v15-turbo
CAVN generated sample
Afterglow Drive
MP3 / 48 kHz
Our test, not a stock demo
The exact brief behind Afterglow Drive
Generated on CAVN with ACE-Step 1.5 Turbo in custom mode using original English lyrics plus explicit tempo, key, and time-signature controls.
Generation direction
“Energetic alternative pop with expressive female vocals, punchy live drums, bright electric guitars, melodic bass, an open-road chorus, 126 BPM, D major, and 4/4 time.”
Tempo-specific briefsCustom lyric structuresKey and meter control
What you can control
ACE-Step capabilities inside CAVN
Choose ACE-Step when tempo, key, meter, and lyric structure are part of the brief. Prompt mode is fast for exploration; custom mode is the safer choice when language and exact words must stay under your control.
02
Custom lyrics
Supply your own structured lyrics and style tags when language, sections, and exact lines need to remain part of the brief.
03
Musical controls
Set BPM, key, and time signature to describe the composition in musical terms as well as genre and mood language.
04
Language and instrumental modes
Choose from supported vocal language codes or switch to an instrumental workflow for cues and production beds.
Model comparison
Compare Mureka, MiniMax Music, ACE-Step, and HappyShrimp
The useful question is not which model wins every prompt. It is which input style matches the material you already have and the decisions you need to control.
| Decision | Mureka | MiniMax Music | ACE-Step | HappyShrimp |
|---|---|---|---|---|
| Best starting point | A natural-language song idea | Finished lyrics plus a production brief | A brief with musical constraints | A one-line idea or reference audio |
| Primary control | Prompt expansion and variants | Lyrics, style, and audio settings | Lyrics, BPM, key, meter, and language | Lyrics mode, reference audio, and advanced settings |
| Current model | Mureka V9 | Music 3.0 | ACE-Step 1.5 Turbo | Web-based AI music generator |
| Ideal workflow | Explore several song directions quickly | Turn prepared writing into a directed song | Translate a music brief into explicit controls | Start from a prompt in the official product |
A practical ACE-Step workflow
Keep the first generation measurable: one clear brief, one model, and a small number of candidates. Change only the inputs that need improvement on the next pass.
Open the music generator- 01
Decide prompt or custom
Use prompt mode for exploration. Use custom mode when lyrics, language, tempo, key, or meter are fixed requirements.
- 02
Set the musical frame
Add style tags and, when needed, choose BPM, key scale, time signature, vocal language, and instrumental mode.
- 03
Generate and verify
Check lyric language, structural adherence, tempo feel, and arrangement before advancing a candidate into production.
Know before generating
Limits worth planning around
Prompt mode can interpret language loosely. Use custom lyrics when exact English or another supported language is a hard requirement.
BPM, key, and meter guide generation but should still be verified by listening or downstream music analysis.
The endpoint can return two candidates for one custom request, so account for variant generation in budget and review time.
FAQ
Questions about ACE-Step
What is ACE-Step?+
ACE-Step is an AI music generation model available in CAVN. It supports quick prompt generation and a custom workflow with lyrics, style tags, BPM, key, time signature, language, and instrumental controls.
Can ACE-Step use custom lyrics?+
Yes. Custom mode accepts a structured lyric sheet and is the recommended path when exact language and wording matter.
Can I set BPM and musical key in ACE-Step?+
Yes. The custom CAVN workflow accepts BPM from 30 to 300, a supported major or minor key, and time signatures including 2/4, 3/4, 4/4, and 6/8. CAVN also accepts 5/4 and 7/8, which ACE-Step documents as advanced choices whose results can vary.
Which ACE-Step model made the demo?+
Afterglow Drive was generated with ACE-Step 1.5 Turbo in custom mode, requested at 126 BPM, D major, and 4/4 time using the displayed style direction and original English lyrics.
Explore other music models
Compare with another real sample
Your next track starts here
Ready to create with ACE-Step?
Open the CAVN music generator with ACE-Step selected, add your own brief, and turn it into a track you can refine.