NotaGen: AI That Writes Classical Sheet Music

• AI model for generating classical sheet music not just MIDI sequences
• Trained on 1.6M music pieces refined with reinforcement learning
• Mimics historical composers’ styles for authentic compositions
• Supports solo piano chamber music orchestral and choral works
• Free on GitHub. Deploying NotaGen-X inference locally requires at least 24GB of GPU memory.

AI-Powered Classical Music Generation

NotaGen is an AI tool that writes classical sheet music—think Bach or Beethoven but generated by a model. It’s trained on a massive collection of 1.6 million pieces and fine-tuned on 9K high-quality classical works. Instead of working with MIDI files like most AI music tools it produces real sheet music ready for performance.

Developed by researchers from China and the US NotaGen is designed to create authentic compositions in a variety of classical styles. It learns like a large language model (LLM) but for music using pre-training fine-tuning and reinforcement learning.

The standout feature? It uses something called CLaMP-DPO reinforcement learning which lets it refine its music without needing human labels. When tested against human compositions it outperformed other AI music generators in A/B tests.

• Writes Real Sheet Music. Unlike MIDI-based AI tools NotaGen creates professional-quality classical sheet music.
• Trained Like an LLM. Pre-training fine-tuning and reinforcement learning make the output more natural.
• Composer-Specific Styles. Want Baroque-style Bach? Just ask.
• CLaMP-DPO Optimization. Uses AI feedback to improve structure and style.
• Multi-Instrument Support. Works for piano chamber music orchestral and even choral pieces.

How It's Built

• Pre-training. Learns from a massive dataset of 1.6M musical pieces.
• Fine-tuning. Focuses on 9K high-quality compositions from 152 famous composers.
• Reinforcement Learning. Uses AI feedback to tweak its music without human intervention.

Who’s This For?

• Composers & Musicians. Write music in the style of historical legends.
• Music Educators. Create classical composition exercises for students.
• Sheet Music Publishers. Automatically generate full compositions.
• AI Researchers. A great testbed for AI-driven music creation.

Pricing & Access

NotaGen is an open-source symbolic music generation model available on GitHub under the MIT License. This permissive license allows users to freely use, modify, and distribute the software.