melrose
Health Pass
- License — License: MIT
- Description — Repository has a description
- Active repo — Last push 0 days ago
- Community trust — 208 GitHub stars
Code Pass
- Code scan — Scanned 3 files during light audit, no dangerous patterns found
Permissions Pass
- Permissions — No dangerous permissions requested
This tool is a music programming environment that lets you create and play melodies using a custom language. It produces MIDI output and includes an MCP server component to receive and play musical expressions via the MCP protocol.
Security Assessment
Overall risk: Low. The tool appears to be focused strictly on music generation and MIDI handling without requesting dangerous system permissions. The light code audit scanned several files and found no dangerous patterns, hardcoded secrets, or suspicious network requests. Since its primary function is producing MIDI, it does not access sensitive user data or execute arbitrary shell commands.
Quality Assessment
The project is in good health and actively maintained, with its most recent push happening today. It uses the permissive MIT license, which is ideal for open-source adoption. Having over 200 GitHub stars indicates a decent level of community trust and usage for a niche programming tool. Furthermore, the project demonstrates good software hygiene by utilizing continuous integration (GitHub Actions) and linking to a Go Report Card, suggesting the codebase is regularly tested and well-documented.
Verdict
Safe to use.
interactive programming of melodies, producing MIDI
Melrōse - programming of music melodies
Introduction
melrōse is a tool to create and play music by programming melodies.
It uses a custom language to compose notes and create loops and tracks to play.
This is an example of a simple major scale C.
sequence('c d e f g a b c5')
Note sequences in your program can be changed while playing giving you direct audible feedback.
For the best experience, use the melrōse tool together with the Visual Studio Code Plugin for Melrōse.
See also Blog post
Install
See Build instructions.
Usage
melrōse is a tool to create music by programming melodies and uses a custom language to compose notes that are played with MIDI.
Note sequences in your program can be changed while playing which makes it possible to even use it for live performance.
For the best experience, use the melrōse together with the Visual Studio Code Plugin for Melrōse.
Read the documentation on how to use melrōse.
Status
The language has reached version 1.0 since tool version v1.0.0 and therefore future changes will only extend it (1.x) and not introduce breaking changes.
Programming music
System setup
Melrōse MCP Server
melrose-mcp is a (server) tool that uses the MCP protocol to receive expressions to play.
See melrose-mcp for details how to install and use it.
Contributions
Fixes, suggestions, documentation improvements are all welcome.
Fork this project and submit small Pull requests.
Discuss larger ones in the Issues list.
You can also sponsor Melrōse via Github Sponsors.
Software is licensed under MIT.
© 2026 ernestmicklei.com
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