In your AI
Grammar of Music in Claude, ChatGPT and Grok
Grammar of Music has an MCP server: a connector you add to Claude, ChatGPT or Grok. Ask for a chord and it appears on the staff, the keyboard and the guitar, and plays; train your ear in the middle of the conversation. The notes come from our music theory engine, never from the AI's guess.
How to add it to Claude, ChatGPT and Grok
- Open Settings → Connectors.
- Choose Add custom connector.
- Paste the link, name it Grammar of Music and save. It works in the app, in the browser and on your phone.
- In Settings → Apps & Connectors, turn on developer mode (under the advanced settings).
- Choose Create and paste the link, with the name Grammar of Music.
- Save it, then pick it in a new conversation.
Custom connectors depend on your ChatGPT plan, and OpenAI moves this setting from time to time.
- Go to grok.com/connectors.
- Choose New Connector, then Custom.
- Paste the link and save.
- Any AI app that takes a remote MCP server by link works the same way: look for connectors, integrations or MCP in its settings and paste the link.
What to ask
- “Show me Dm7”
- “The harmonic field of E major”
- “Analyse Am F C G”
- “Let's train intervals”
- “What do I review today?”
Without an account, or with yours
Without an account
- Chords, scales, intervals, harmonic fields and progressions, drawn and played
- One ear-training round of 10 intervals, then samples of 3
With your account (free)
- Ear training with no limit
- Every answer counts in your progress on the site
- My study: what to review today, and your weak spots
The AI app sees your answers and your progress, never your e-mail. Privacy
Questions
What is an MCP server?
MCP (Model Context Protocol) is the open standard that lets an AI app use tools from outside. Ours gives Claude, ChatGPT and Grok Grammar of Music's music theory: the engine that spells chords and scales, the cards with staff and sound, and the ear training.
Which AI apps does it work in?
Claude (in the app, the browser and on the phone), ChatGPT and Grok, and any other app that takes a remote MCP server by link. Where an app shows no cards, the AI answers in text with the same notes.
Does it cost anything?
No. Using the server is free, and so is creating an account. Without one you can already see and hear everything and play a round of ear training.
Can the AI get the notes wrong?
The notes, the names and the analyses come from our engine, not from the model, which only explains around them. That is why a chord is spelled right in every key.
