Description
Lacuna (lacuna.fm) is an AI song and music generator that turns a lyric or idea into a complete, original song with vocals in seconds. You describe genre, mood, tempo and instruments or provide your own lyrics, and Lacuna's AI generates the melody, harmony, instrumentation and vocals, letting you specify vocal style, gender and tone. It supports virtually every genre and can blend styles for hybrid sounds, and you can try it as a guest with no sign-up.
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Beyond generation, Lacuna is a full workspace built on a visual canvas that connects writing, arranging, generating and stem-splitting. It offers multiple AI music models in one place so you can generate the same song across models and keep the best, and it lets you remix, extend, rewrite a selected section, split stems, or master directly from a track. One-click stem separation pulls out vocals, drums, bass and other layers in the browser, and every track comes with instant BPM, key and tempo analysis.
For songwriting it includes a rhyme generator, a syllable counter and AI lyric tools, plus a full online MIDI editor where you can generate and refine melodies and export to any DAW. Generated music is royalty-free and cleared for commercial use with a license in your name on paid plans. Lacuna offers free monthly credits with no card required, plus subscription and one-time credit options.
- CategoryAI Music Generators
- Pricing ModelFreemium
- DeploymentCloud
- PlatformsWeb
Lacuna's Core Features
AI song generation with vocals from text or lyrics
Multiple AI music models in one generator
One-click stem separation (vocals, drums, bass)
Remix, extend and section rewriting
Instant BPM, key and tempo analysis
Built-in rhyme generator and syllable counter
Full online MIDI editor with DAW export
Royalty-free commercial license on paid plans
How to use Lacuna?
Start with an idea: Describe the genre, mood and instruments, or paste your own lyrics.
Generate: Let Lacuna's AI create a complete song with vocals in seconds, trying different models.
Shape the track: Remix, extend, rewrite a selected section, or split it into stems.
Analyze and edit: Check BPM and key, refine melodies in the MIDI editor, and polish lyrics.
Download: Export the finished song or its stems with a commercial license on paid plans.
Lacuna's Use Cases
- Personal song gifts
- Creator background music
- Producer workflow
- Game and brand audio
