HornLib — Interactive French Horn F/Bb Double Horn Fingering & Harmonics Engine

com.hornlib/mcpVersion 1.0.3

Look up French Horn F/Bb double horn valve fingerings, trigger combinations & partials.

Status

Responds118 msNov 14, 2026, 14:01 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 14:01 UTC
Latency: 118 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://hornlib.com/api/mcpResponds118 msNov 14, 2026, 14:01 UTC

No sign-in

Claude Code

claude mcp add --transport http hornlib https://hornlib.com/api/mcp

Claude Desktop and claude.ai

1
2
3

Settings > Connectors > Add custom connector
Name: hornlib
Remote MCP server URL: https://hornlib.com/api/mcp

Cursor

{
  "mcpServers": {
    "hornlib": {
      "url": "https://hornlib.com/api/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"hornlib","type":"http","url":"https://hornlib.com/api/mcp"}'

Built your own server? run.zero hosts MCP servers on European infrastructure.

Host your own MCP server on run.zero

Tools

8 tools

Tools of HornLib — Interactive French Horn F/Bb Double Horn Fingering & Harmonics Engine
	Description		Read-only	Idempotent	Open world
`analyze_horn_harmonic_series`Analyze the natural harmonic overtone series (partials 2 through 16) for any F-horn or Bb-horn valve combination, returning equal-temperament cent deviations (e.g. -14 cents on 5th partial, -31 cents on 7th partial) and alternate valve solutions.	Analyze the natural harmonic overtone series (partials 2 through 16) for any F-horn or Bb-horn valve combination, returning equal-temperament cent deviations (e.g. -14 cents on 5th partial, -31 cents on 7th partial) and alternate valve solutions.	No	Yes	Yes	No
`diagnose_horn_intonation_and_hand_position`Diagnose pitch tendencies, right-hand bell acoustics, and Stopped Horn (gestopft / +) transposition rules (transpose down a half-step on the F horn side to compensate for the +1/2 step acoustic shortening when sealing the bell).	Diagnose pitch tendencies, right-hand bell acoustics, and Stopped Horn (gestopft / +) transposition rules (transpose down a half-step on the F horn side to compensate for the +1/2 step acoustic shortening when sealing the bell).	No	Yes	Yes	No
`generate_daily_horn_warmup_routine`Generate a structured daily French Horn warm-up schedule covering harmonic lip slurs, Farkas long tones, double/triple tonguing, low-register pedal tones, and dynamic control tailored to available practice time.	Generate a structured daily French Horn warm-up schedule covering harmonic lip slurs, Farkas long tones, double/triple tonguing, low-register pedal tones, and dynamic control tailored to available practice time.	No	Yes	Yes	No
`get_orchestral_horn_excerpt_guide`Retrieve audition preparation notes, recommended F/Bb trigger fingerings, breathing plans, and historical crook transpositions for standard orchestral French Horn excerpts (Mozart 4, Beethoven 3/7/9, Brahms 1/3, Mahler 5, Strauss Till Eulenspiegel / Ein Heldenleben, Tchaikovsky 5).	Retrieve audition preparation notes, recommended F/Bb trigger fingerings, breathing plans, and historical crook transpositions for standard orchestral French Horn excerpts (Mozart 4, Beethoven 3/7/9, Brahms 1/3, Mahler 5, Strauss Till Eulenspiegel / Ein Heldenleben, Tchaikovsky 5).	No	Yes	Yes	No
`lookup_french_horn_fingering`Look up standard F-side and Bb-trigger valve fingerings, concert pitch transposition (down a perfect fifth), and harmonic tendency notes for any written French Horn note (e.g. "C4", "F4", "G4", "Bb4", "C5", "F5").	Look up standard F-side and Bb-trigger valve fingerings, concert pitch transposition (down a perfect fifth), and harmonic tendency notes for any written French Horn note (e.g. "C4", "F4", "G4", "Bb4", "C5", "F5").	No	Yes	Yes	No
`lookup_horn_trill_fingering`Find optimal whole-tone and half-step trill fingerings on the F/Bb double horn, identifying whether a trill should be executed as a mechanical valve trill or a harmonic lip trill (common above written E5 on the F side).	Find optimal whole-tone and half-step trill fingerings on the F/Bb double horn, identifying whether a trill should be executed as a mechanical valve trill or a harmonic lip trill (common above written E5 on the F side).	No	Yes	Yes	No
`recommend_beginner_horn_and_mouthpiece`Compare Kruspe wrap (Conn 8D style, dark orchestral projection, larger bell throat) vs Geyer/Knopf wrap (Yamaha 667/671, Alexander 103 style, smooth slurs, medium throat) and recommend mouthpiece cup depths and rim diameters by player level.	Compare Kruspe wrap (Conn 8D style, dark orchestral projection, larger bell throat) vs Geyer/Knopf wrap (Yamaha 667/671, Alexander 103 style, smooth slurs, medium throat) and recommend mouthpiece cup depths and rim diameters by player level.	No	Yes	Yes	No
`transpose_french_horn_pitch`Transpose written French Horn parts from historical orchestral crooks (Horn in Eb, D, C, G, A, E, Bb-alto, Bb-basso) to modern Horn in F written pitch and Concert Pitch, with interval semitone shifts and clef rules.	Transpose written French Horn parts from historical orchestral crooks (Horn in Eb, D, C, G, A, E, Bb-alto, Bb-basso) to modern Horn in F written pitch and Concert Pitch, with interval semitone shifts and clef rules.	No	Yes	Yes	No

Details

Registry status: Active
Published: Nov 8, 2026
Updated: Nov 8, 2026
Website: https://hornlib.com/⁠ (opens in a new tab)
Repository: https://github.com/HornLib/mcp-server⁠ (opens in a new tab)
Categories: Uncategorized
GDPR: Not declared

Are you the operator? Claim this listing