Clef MCP
A remote MCP server providing read-only access to music guides, chord transposition, piano chord spelling, and guitar-tab to piano note mapping. It allows agents to retrieve educational content and perform musical transformations without requiring audio or MIDI file imports.
Endpoint and access
No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.
https://clefdrills.com/mcpWhat its tools do
4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.
Checks and signals
Each line is separate evidence, not a trust score.
- Passed Endpoint answered the live check ·
- Availability 1 of 1 checks passed in 30 days
What you can do with it
- Retrieve music theory guides and sight-reading resources
- Transpose musical chords between keys
- Spell out piano chord structures
- Map guitar tab pitches to piano notes
Source and maintenance
Protocol and capabilities
- Server
- clef-music-tools 1.0.0
- MCP protocol negotiated in check
- 2025-11-25
- Tools
- 4 advertised
- Resources
- 30 advertised
- Resource templates
- 0 advertised
- Prompts
- Not advertised
{
"tools": {
"listChanged": true
},
"resources": {
"listChanged": true
}
}Tools
4 advertised
find_music_guides
Find Clef instructional guides by words in the title and description. Guides are not file converters.
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"maxLength": 200,
"minLength": 1
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}transpose_chords
Transpose chord symbols, including slash bass notes. Does not process audio, lyrics, or notation files.
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"chords",
"semitones"
],
"properties": {
"chords": {
"type": "string",
"maxLength": 10000,
"minLength": 1
},
"semitones": {
"type": "integer",
"maximum": 24,
"minimum": -24
},
"preferFlats": {
"type": "boolean",
"default": false
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}spell_piano_chord
Spell a supported chord as piano pitches with octave and MIDI values. This does not create a rhythmic arrangement.
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"symbol"
],
"properties": {
"octave": {
"type": "integer",
"default": 4,
"maximum": 6,
"minimum": 1
},
"symbol": {
"type": "string",
"maxLength": 40,
"minLength": 1
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}tab_to_piano_notes
Convert six-string ASCII guitar tab to sounding piano pitches. Tab spacing does not specify note duration. No GP files or audio uploads.
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"tab"
],
"properties": {
"tab": {
"type": "string",
"maxLength": 20000,
"minLength": 1
},
"capo": {
"type": "integer",
"default": 0,
"maximum": 12,
"minimum": 0
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true,
"destructiveHint": false
}Prompts
Not advertised
Resources
30 advertised
capabilities
Available Clef tools, guides, and explicit limitations.
https://clefdrills.com/ai/capabilities.jsonbest-sheet-music-apps-for-piano — Best sheet music apps for piano: forScore vs Newzik vs Piascore
A practical comparison of forScore, Newzik and Piascore for organizing, marking up and rehearsing digital piano scores.
https://clefdrills.com/blog/best-sheet-music-apps-for-piano.htmlbest-apps-to-learn-pop-songs-on-piano — Best apps to learn pop songs on piano: flowkey vs Simply Piano vs Pianote
Choose between flowkey, Simply Piano and Pianote by lesson format, feedback needs and the songs you actually want to learn.
https://clefdrills.com/blog/best-apps-to-learn-pop-songs-on-piano.htmlmusic-conversion-ai-assistant-guide — Music Conversion with an AI Assistant: Formats, Tools and Checks
A practical routing guide for AI-assisted music tasks: MIDI, MP3, PDF and tab files, existing Clef tools, limitations and machine-readable capabilities.
https://clefdrills.com/blog/music-conversion-ai-assistant-guide.htmlbest-digital-piano-for-adult-beginners — Best Digital Piano for Adult Beginners: Four Sensible Shortlist Options
A constraint-led comparison of the Roland FP-10, Roland FP-30X, Yamaha P-225 and Casio PX-S1100 for adult beginners.
https://clefdrills.com/blog/best-digital-piano-for-adult-beginners.htmlbuying-a-used-digital-piano — Buying a Used Digital Piano: A Practical Inspection Guide
A cautious, non-technical process for inspecting a used digital piano, pricing the complete setup and deciding whether new is better value.
https://clefdrills.com/blog/buying-a-used-digital-piano.htmlroland-fp10-vs-fp30x — Roland FP-10 vs FP-30X: Which Upgrades Are Worth Paying For?
A practical comparison of the Roland FP-10 and FP-30X, focused on shared keyboard fundamentals, meaningful upgrades, and complete setup cost.
https://clefdrills.com/blog/roland-fp10-vs-fp30x.htmlyamaha-p225-vs-roland-fp30x — Yamaha P-225 vs Roland FP-30X: Which Fits Your Practice?
Compare the Yamaha P-225 and Roland FP-30X by portable weight, connections, pedal plans and a repeatable in-store audition rather than brand reputation.
https://clefdrills.com/blog/yamaha-p225-vs-roland-fp30x.htmlmidi-to-sheet-music — MIDI to Sheet Music: Get a Readable Piano Score
Learn how to turn MIDI note events into a readable piano score by quantizing rhythm, separating hands and voices, interpreting pedal data, and correcting notation.
https://clefdrills.com/blog/midi-to-sheet-music.htmlmp3-to-sheet-music — MP3 to Sheet Music: A Practical Transcription Workflow
Learn how to turn an MP3 recording into editable note data, correct transcription errors, and prepare readable sheet music for practice.
https://clefdrills.com/blog/mp3-to-sheet-music.htmlpdf-sheet-music-to-musicxml — PDF Sheet Music to MusicXML: Scan, Check and Edit
A practical guide to converting PDF sheet music into editable MusicXML with optical music recognition, followed by systematic notation checks and cleanup.
https://clefdrills.com/blog/pdf-sheet-music-to-musicxml.htmltab-files-to-piano-sheet-music — Tabs to Piano Sheet Music: ASCII, GP Files and Rhythm
A practical guide to converting ASCII guitar tablature or structured GP, GPX and GP5 files into readable piano notation while preserving pitch, rhythm and octave intent.
https://clefdrills.com/blog/tab-files-to-piano-sheet-music.htmlabc-musicxml-midi-formats — ABC, MusicXML and MIDI: Choose and Repair a Music File
Learn the practical differences between ABC, MusicXML, compressed MXL, and MIDI; choose the right file for a task; and validate common repairs without assuming a perfect conversion exists.
https://clefdrills.com/blog/abc-musicxml-midi-formats.htmlaccessible-piano-worksheets — Piano Reading Worksheets: Landmarks, Ledger Lines and Larger Print
Accessible piano-reading worksheets built around staff landmarks, middle-C ledger lines, larger print, and an original printable 12-note exercise with answers.
https://clefdrills.com/blog/accessible-piano-worksheets.htmlalternate-tuning-tabs-piano — Guitar, Bass and Ukulele Tabs to Piano: Tuning, Capo and Octaves
A practical manual method for turning guitar, bass, and ukulele ASCII tabs into playable piano notes while accounting for alternate tunings, capos, octave placement, and incomplete rhythm information.
https://clefdrills.com/blog/alternate-tuning-tabs-piano.htmlaudio-melody-chords-transcription — Find Melody Notes and Chords in Audio: A Careful Listening Workflow
A practical, manual workflow for identifying melody notes, rhythm, meter, key clues, and plausible chords from an audio recording without treating guesses as facts.
https://clefdrills.com/blog/audio-melody-chords-transcription.htmlchord-charts-to-piano-voicings — Chord Charts to Piano Voicings: Slash Chords, Inversions and Rhythm
Learn how to turn chord-chart symbols into playable piano voicings by identifying chord tones, reading slash bass notes, choosing inversions, and creating an honest rhythm plan.
https://clefdrills.com/blog/chord-charts-to-piano-voicings.htmlmidi-notation-rhythm-repair — Fix Unreadable MIDI Sheet Music: Rhythm, Pedal and Voices
A practical repair workflow for turning a cluttered MIDI-derived score into readable notation by checking rhythmic grids, tuplets, pickup measures, sustain pedal data, and independent voices.
https://clefdrills.com/blog/midi-notation-rhythm-repair.htmlmusicxml-transpose-parts — Transpose MusicXML and Extract Parts Without Losing Notation
A practical workflow for transposing MusicXML scores and preparing readable individual parts while preserving pitches, key signatures, rhythms, and engraving decisions.
https://clefdrills.com/blog/musicxml-transpose-parts.htmlrepair-sheet-music-scans — Fix Scanned Sheet Music: Recognition Errors and Readable Scores
A practical workflow for repairing scanned notation: improve the image, identify common recognition mistakes, rebuild ambiguous passages, and proofread a readable score without confusing beams, ties, voices, or repeats.
https://clefdrills.com/blog/repair-sheet-music-scans.htmlroman-numerals-key-changes — Roman Numerals to Piano Chords: Analyse and Change Key
Learn how Roman-numeral chord labels reveal a progression’s function, then rebuild the same progression in a new piano key with a worked example, exercises, and practical checks.
https://clefdrills.com/blog/roman-numerals-key-changes.htmlsolfege-note-names-worksheets — Fixed Do vs Movable Do: Piano Note Names, Worksheets
Learn the difference between fixed-do and movable-do solfège, connect syllables to piano letter names, and use printable browser worksheets with worked C major and G major examples.
https://clefdrills.com/blog/solfege-note-names-worksheets.htmlturn-sheet-music-into-practice — Turn a Piano Score into Reading, Rhythm and Coordination Drills
Learn a manual method for extracting short piano-score patterns and turning them into focused reading, rhythm, hand-separation and coordination drills.
https://clefdrills.com/blog/turn-sheet-music-into-practice.htmlmusic-conversion-workflow-finder — Find a Music Conversion or Piano Practice Workflow
Choose a useful workflow by the input you have, the result you need, the available tool and the limitation you should expect.
https://clefdrills.com/blog/music-conversion-workflow-finder.htmlweighted-vs-semi-weighted-keys — Weighted vs semi-weighted keys: which action should you buy?
A practical comparison of weighted and semi-weighted keyboard actions for adult piano learners, including touch sensitivity, graded action, key count, and an audition checklist.
https://clefdrills.com/blog/weighted-vs-semi-weighted-keys.htmldigital-piano-vs-synthesizer — Digital piano vs synthesizer: choose by the work you will actually do
A practical guide to digital pianos, synthesizers, and MIDI keyboard controllers for piano learning, production, and live performance.
https://clefdrills.com/blog/digital-piano-vs-synthesizer.htmlwhat-is-midi — What Is MIDI? A Practical Guide for Piano Learners
Understand what MIDI sends, what it does not carry, and how to connect a keyboard by USB, 5-pin DIN, or Bluetooth for piano practice.
https://clefdrills.com/blog/what-is-midi.htmlbest-midi-keyboard-for-piano-practice — Best MIDI Keyboard for Piano Practice: Three Sensible Paths
Compare the Novation Launchkey 49 MK4, M-Audio Keystation 88 MK3, and Roland FP-10 by key range, action, sound, connections, and practice purpose.
https://clefdrills.com/blog/best-midi-keyboard-for-piano-practice.html61-vs-88-keys-for-learning-piano — 61 vs 88 keys for learning piano: what actually matters
A practical comparison of keyboard range, action and touch sensitivity, with clear upgrade triggers and a practice test you can do on either size.
https://clefdrills.com/blog/61-vs-88-keys-for-learning-piano.htmlbest-apps-for-piano-drills — Best apps for piano drills: choose by the job
A balanced comparison of flowkey, Simply Piano, Tenuto, musictheory.net and Clef for reading, keyboard mapping, theory drills and song-led practice.
https://clefdrills.com/blog/best-apps-for-piano-drills.html90-day uptime
A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.
- 2026-11-07: 1 of 1 checks answered
30-day availability
Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.
- Successful checks
- 1 of 1 (100%)
- Average latency
- 574 ms
- 95th percentile latency
- 574 ms
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · probe · passed · 574 ms · metadata changed · 4 tool(s), 30 resource(s), 0 resource template(s)
Connect from your client
Each snippet registers the same endpoint; pick the client you use.
Claude Code
claude mcp add --transport http clef-mcp-clefdrills https://clefdrills.com/mcpCodex
codex mcp add clef-mcp-clefdrills --url https://clefdrills.com/mcpCursor
{
"mcpServers": {
"clef-mcp-clefdrills": {
"url": "https://clefdrills.com/mcp"
}
}
}Cline
{
"mcpServers": {
"clef-mcp-clefdrills": {
"type": "streamableHttp",
"url": "https://clefdrills.com/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"clef-mcp-clefdrills": {
"type": "http",
"url": "https://clefdrills.com/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http clef-mcp-clefdrills https://clefdrills.com/mcpClaude Desktop
https://clefdrills.com/mcpWindsurf
{
"mcpServers": {
"clef-mcp-clefdrills": {
"serverUrl": "https://clefdrills.com/mcp"
}
}
}Let your agent find its tools
Find servers like Clef MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.