The answer
Gradus Notation
Top verified match: it matches your intent, it is the official vendor server, corroborated across multiple registries.
fresh · published 56d ago · verified 2026-07-11tested · static-verifiedsigned passport ✓score 53/100
claude mcp add Gradus Notation -- npx -y @gradusmusic/notation-mcp
Runners-up
- io.github.SebastianMaciel/jsx-notation41/100 · weaker match
- io.github.groupdocs-annotation/groupdocs-annotation-mcp25/100 · weaker match
- Visual Annotation MCP8/100 · weaker match