THIRI Chord Intelligence
Deterministic music theory for agents: analyze, voice, reharmonize, conduct — computed, not guessed
Should I use this
Quality & Safety
Findings (1)
- LOWTool 'resolve_chord' description lacks action verbin resolve_chord
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"chord-intelligence": {
"command": "npx",
"args": [
"@bluesprincemedia/thiri-mcp"
]
}
}
}Runnable packages
0.5.2stdioRemote endpoints
https://mcp.thiri.ai/mcpstreamable-httpWhat it can do
Tool inventory
Tools (5)
🟢analyze_chord(chord, key)
Parse a chord into root, quality, intervals, and (with a key) roman numeral + function.
Input Schema
{
"type": "object",
"properties": {
"chord": {
"type": "string"
},
"key": {
"type": "string"
}
},
"required": [
"chord"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢resolve_chord(chord)
Resolve a chord to spelled notes, frequencies, MIDI, and recommended scales.
Input Schema
{
"type": "object",
"properties": {
"chord": {
"type": "string"
}
},
"required": [
"chord"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢generate_voicing(chord, style, octave, voices, previousNotes, ...)
Instrument-ready voicing in a style. Tension symbols voice by seat substitution (arranging practice, not stacking): 9/b9/#9 replace the root, #11/13/b13 replace the 5th, the 3rd and 7th are untouched guide tones. Pass voices: 5 to promote the implied 9 of an 11/13 chord; pass previousNotes for a voice-leading score.
Input Schema
{
"type": "object",
"properties": {
"chord": {
"type": "string"
},
"style": {
"type": "string"
},
"octave": {
"type": "number"
},
"voices": {
"type": "number"
},
"previousNotes": {
"type": "array",
"items": {
"type": "string"
}
},
"keyContext": {
"type": "string"
}
},
"required": [
"chord"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢reharmonize(progression, technique, key)
Reharmonize a progression. Techniques: tritone_sub, ii_v_insertion, modal_interchange, diminished_passing, secondary_dominant, chain_of_dominants, coltrane_changes, backdoor (or auto).
Input Schema
{
"type": "object",
"properties": {
"progression": {
"type": "array",
"items": {
"type": "string"
}
},
"technique": {
"type": "string"
},
"key": {
"type": "string"
}
},
"required": [
"progression"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢conduct_band(prompt, durationSec)
Arrange a 4-piece band from a natural-language prompt. Returns conductor tempo/groove, 4 lanes of note events, lead sheet, and base64 MIDI. Audio render (Csound → WAV) stays on local thiri-conductor-mcp / POST /v2/render.
Input Schema
{
"type": "object",
"properties": {
"prompt": {
"type": "string"
},
"durationSec": {
"type": "number"
}
},
"required": [
"prompt"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
Evidence