🎵
heartlib: Open-Source Music Foundation Models
The most powerful open-source music generation model of 2026
🎶
A family of open-sourced music foundation models
- 🎼 HeartMuLa — music language model generating music conditioned on lyrics and tags with multilingual support
- 🎧 HeartCodec — 12.5 Hz music codec with high reconstruction fidelity
- 📝 HeartTranscriptor — whisper-based model tuned for lyrics transcription
- 🔗 HeartCLAP — audio–text alignment model for unified embedding space
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Latest releases — 7B and 3B versions
- 🔥 HeartMuLa-7B — comparable to Suno in musicality, fidelity and controllability
- 🎬 MuLaCover — controllable cover-song and music-remix model
- 🎧 HeartCodec-oss-encoder — audio tokenization and reconstruction
🖥️
Local deployment in one step
... git clone https://github.com/HeartMuLa/heartlib.git
... pip install -e .
⚖️
License & citation
... Apache 2.0 License
❓
FAQ
Q: How do I generate music?
A: ... python ./examples/run_music_generation.py --model_path=./ckpt --version="3B"
Q: What versions are available?
A: ... HeartMuLa-3B and HeartMuLa-7B (7B being the latest)
Q: How do I install it locally?
A: ... git clone ... / pip install -e .
🎵 Start generating music with heartlib today!
... https://github.com/HeartMuLa/heartlib
