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@playbykey/theory - Music theory TypeScript engine and MCP server

@playbykey/theory - Music theory TypeScript engine and MCP server is a coding AI agent for Provide programmable music theory support for applications in music creation and education. Pricing: not stated on the product page. As of 2026-09-12, KanonAgent records 3 upvotes. First indexed by KanonAgent on 2026-07-11.
A TypeScript-based music theory engine and MCP server for programmable music theory, built for developers creating music tech applications
@playbykey/theory - Music theory TypeScript engine and MCP server — official preview image
3 upvotes
Tracked by Kanon since Jul 11, 2026
no signal yet
status
10/100
momentum · conf 0.43
20d
tracked since 2026-08-22
1
evidence records

No signal event on file yet — status is unknown, not "quiet".

📈 Timelinewhat changed, and when
🔎 Known / Unknown 16 of 23 fields unknown
Machine-callable unknown
Open source unknown
Self-hostable unknown
Bring your own key unknown
Autonomy level unknown
Pricing model unknown
Integrationsmcp inferred 1 quote(s)

“Unknown” means we have not verified it — it is not a “no”. Hard filters never treat unknown as false.

🤖 Agent teardown · coding
Job to be doneProvide programmable music theory support for applications in music creation and education.
Who it is forDevelopers and music tech builders
Integrationsmcp
Why it matters

Turns abstract music theory into a reusable, code-driven foundation—potentially becoming a core infrastructure layer for next-gen music AI.

Evidence quotesverbatim, from the product’s own materials

“MCP server for programmable music theory”— description
Signal source: Show HN
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FAQ

What is @playbykey/theory?

A TypeScript-based music theory engine and MCP server for programmable music theory, built for developers creating music tech applications

What does @playbykey/theory do?

Provide programmable music theory support for applications in music creation and education.

Why does @playbykey/theory matter?

Turns abstract music theory into a reusable, code-driven foundation—potentially becoming a core infrastructure layer for next-gen music AI.

What does @playbykey/theory integrate with?

mcp

How popular is @playbykey/theory?

As tracked by KanonAgent: 3 upvotes (first indexed 2026-07-11).

What are the best @playbykey/theory alternatives?

Similar AI agents tracked by KanonAgent: deepseek-harness, gemini-cli, Codédex, LLM Gateway, oh-my-openagent, goose.

@playbykey/theory - Music theory TypeScript engine and MCP server alternatives — similar AI agents

deepseek-harnessgemini-cliCodédexLLM Gatewayoh-my-openagentgoose

Where this fits — browse the same shelf

AI Coding AgentsAI agents that work with MCP (Model Context Protocol)