Nubium
Nubium: A beta notation editor with tablature, playback, and optional AI score editing. Ranked #27 of 38 in Music Notation Software by our editors (6.5/10); pricing: Free plan; best for users exploring AI-assisted score editing.
At a glance
- Editor score6.5 / 10
- PricingFree plan
- Best forUsers exploring AI-assisted score editing
- Free planYes
- Paid fromFree
- DeploymentBoth
- Facts checked19 Sep 2026
Where it wins
- Works in a browser or on Windows, macOS, and Linux
- Combines notation, guitar tablature, parts, playback, and export
- Can edit scores with natural-language prompts using AI providers
Where it doesn't
- It is presented as a beta product
- AI editing depends on optional external providers
- No collaboration workflow is described
Our verdict on Nubium
Nubium is an open-source music notation editor for people creating or editing scores, including guitarists who need tablature and users interested in AI-assisted editing. It runs in a browser or as a desktop application for Windows, macOS, and Linux, and does not require an account to use. The feature set covers standard notation, multiple voices, instrumental parts, score playback, and file export, so it aims beyond a narrow notation-only workflow.
Its breadth is a practical draw: Nubium opens and exports MusicXML, accepts MIDI keyboard step entry, and supports guitar tablature with multiple tunings and techniques. Playback uses SoundFont instruments, and scores can be exported as PDF or WAV. Four independent voices per measure and parts management add options for arranging and preparing material. Plugin-based customization extends the editor, while integrations include MIDI controllers and MusicXML.
Natural-language AI score editing is the feature that distinguishes Nubium's stated focus. The listed providers are Anthropic Claude, OpenAI, and Google Gemini, making it relevant to users who want to explore prompt-based changes alongside conventional score editing. Nubium is presented as a beta product, so users seeking a mature, established notation workflow may prefer to compare alternatives before relying on it for demanding work. Its open-source and free positioning suits people who want to explore its tools without a paid-plan decision; choose it for its combination of notation breadth and optional AI editing, not for a verified collaboration workflow or established product maturity.
Your product? Our editors can test Nubium in depth and publish a review, labelled as paid · from $149/mo →
Nubium pricing
Nubium fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Deployment | Both |
| MusicXML support | Yes |
| MIDI support | Yes |
| Parts extraction | Yes |
| Tablature support | Yes |
| Collaboration features | Not verified |
| Deployment | Cloud, Desktop |
| Platforms | Web, Windows, macOS, Linux |
| Integrations | 5 integrations: MusicXML, MIDI controllers, Anthropic Claude, OpenAI, Google Gemini |
| Pricing | Free plan |
| Website | nubium.rocks |
| Facts checked | 19 Sep 2026 |
Nubium integrations
Nubium lists 5 integrations on its own site.
- MusicXML
- MIDI controllers
- Anthropic Claude
- OpenAI
- Google Gemini
Alternatives to Nubium
- DoricoA full notation and engraving workflow, with free editions and a 60-day trial.9.3
- SibeliusSibelius combines detailed score creation with browser-based sharing and review.9.2
- MuseScore StudioA capable desktop notation editor with MusicXML, MIDI, parts, playback, and exports at no cost.9.1
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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