{ "schema_version": 1, "updated": "2026-10-01", "type": "capability_directory", "product": "Clef", "mcp_endpoint": "https://clefdrills.com/mcp", "file_upload_supported": false, "native_app_file_import_supported": false, "app_store_url": "https://apps.apple.com/app/id6768969191", "tools": [ { "id": "chord-transposer", "name": "Chord Transposer", "url": "https://clefdrills.com/tools/chord-transposer/", "interaction": "browser UI; not an API or MCP tool", "description": "Transpose a short chord progression by a chosen interval while preserving chord quality, slash bass notes, and readable spelling." }, { "id": "guitar-tab-to-piano", "name": "Guitar Tab to Piano", "url": "https://clefdrills.com/tools/guitar-tab-to-piano/", "interaction": "browser UI; not an API or MCP tool", "description": "Map standard-tuning guitar string and fret positions to sounding piano note names, with octave numbers and clear timing limits." }, { "id": "chords-to-sheet-music", "name": "Chords to Sheet Music", "url": "https://clefdrills.com/tools/chords-to-sheet-music/", "interaction": "browser UI; not an API or MCP tool", "description": "Turn a chord symbol into a simple whole-note pitch stack for checking chord spelling on the staff." }, { "id": "piano-chord-finder", "name": "Piano Chord Finder", "url": "https://clefdrills.com/tools/piano-chord-finder/", "interaction": "browser UI; not an API or MCP tool", "description": "Look up common piano chord spellings and compare major, minor, dominant seventh, major seventh, and slash-chord examples." }, { "id": "piano-note-flashcards", "name": "Piano Note Flashcards", "url": "https://clefdrills.com/tools/piano-note-flashcards/", "interaction": "browser UI; not an API or MCP tool", "description": "Practise naming staff notes and locating them on the piano with adjustable, immediate flashcard checks." }, { "id": "online-metronome", "name": "Online Metronome", "url": "https://clefdrills.com/tools/online-metronome/", "interaction": "browser UI; not an API or MCP tool", "description": "Set tempo and meter for a clear practice pulse, with practical ways to use clicks without mistaking tempo for musical accuracy." }, { "id": "piano-scale-finder", "name": "Piano Scale Finder", "url": "https://clefdrills.com/tools/piano-scale-finder/", "interaction": "browser UI; not an API or MCP tool", "description": "Choose a root and scale type to identify the notes in major, natural minor, harmonic minor, melodic minor, major pentatonic, or minor pentatonic scales." }, { "id": "music-interval-finder", "name": "Music Interval Finder", "url": "https://clefdrills.com/tools/music-interval-finder/", "interaction": "browser UI; not an API or MCP tool", "description": "Enter two octave-specific pitches to identify an ascending or descending interval, including compound intervals across more than one octave." }, { "id": "circle-of-fifths", "name": "Circle of Fifths", "url": "https://clefdrills.com/tools/circle-of-fifths/", "interaction": "browser UI; not an API or MCP tool", "description": "Choose a major key on the circle to view its key signature, relative minor, and tonic, subdominant, and dominant triads." }, { "id": "piano-chord-inversions", "name": "Piano Chord Inversions", "url": "https://clefdrills.com/tools/piano-chord-inversions/", "interaction": "browser UI; not an API or MCP tool", "description": "Choose a triad or seventh chord to display root position and every inversion with its bass note identified." }, { "id": "chord-progression-generator", "name": "Chord Progression Generator", "url": "https://clefdrills.com/tools/chord-progression-generator/", "interaction": "browser UI; not an API or MCP tool", "description": "Choose a key and practise I\u2013IV\u2013V\u2013I, I\u2013vi\u2013IV\u2013V, ii\u2013V\u2013I, or minor i\u2013iv\u2013V\u2013i with correctly spelled chords." }, { "id": "blank-sheet-music", "name": "Blank Sheet Music", "url": "https://clefdrills.com/tools/blank-sheet-music/", "interaction": "browser UI; not an API or MCP tool", "description": "Print blank treble, bass, or grand staff paper with six or eight systems directly, without entering an email address." } ], "guides": [ { "input": "MIDI", "url": "https://clefdrills.com/blog/midi-to-sheet-music.html", "mode": "guide only" }, { "input": "MP3/WAV", "url": "https://clefdrills.com/blog/mp3-to-sheet-music.html", "mode": "guide only" }, { "input": "ASCII/GP-family tablature", "url": "https://clefdrills.com/blog/tab-files-to-piano-sheet-music.html", "mode": "guide only" }, { "input": "PDF/photo", "url": "https://clefdrills.com/blog/pdf-sheet-music-to-musicxml.html", "mode": "guide only" }, { "input": "ABC, MusicXML and MIDI: Choose and Repair a Music File", "url": "https://clefdrills.com/blog/abc-musicxml-midi-formats.html", "mode": "guide only" }, { "input": "Piano Reading Worksheets: Landmarks, Ledger Lines and Larger Print", "url": "https://clefdrills.com/blog/accessible-piano-worksheets.html", "mode": "guide only" }, { "input": "Guitar, Bass and Ukulele Tabs to Piano: Tuning, Capo and Octaves", "url": "https://clefdrills.com/blog/alternate-tuning-tabs-piano.html", "mode": "guide only" }, { "input": "Find Melody Notes and Chords in Audio: A Careful Listening Workflow", "url": "https://clefdrills.com/blog/audio-melody-chords-transcription.html", "mode": "guide only" }, { "input": "Chord Charts to Piano Voicings: Slash Chords, Inversions and Rhythm", "url": "https://clefdrills.com/blog/chord-charts-to-piano-voicings.html", "mode": "guide only" }, { "input": "Fix Unreadable MIDI Sheet Music: Rhythm, Pedal and Voices", "url": "https://clefdrills.com/blog/midi-notation-rhythm-repair.html", "mode": "guide only" }, { "input": "Transpose MusicXML and Extract Parts Without Losing Notation", "url": "https://clefdrills.com/blog/musicxml-transpose-parts.html", "mode": "guide only" }, { "input": "Fix Scanned Sheet Music: Recognition Errors and Readable Scores", "url": "https://clefdrills.com/blog/repair-sheet-music-scans.html", "mode": "guide only" }, { "input": "Roman Numerals to Piano Chords: Analyse and Change Key", "url": "https://clefdrills.com/blog/roman-numerals-key-changes.html", "mode": "guide only" }, { "input": "Fixed Do and Movable Do: Piano Note Names and Worksheets", "url": "https://clefdrills.com/blog/solfege-note-names-worksheets.html", "mode": "guide only" }, { "input": "Turn a Piano Score into Reading, Rhythm and Coordination Drills", "url": "https://clefdrills.com/blog/turn-sheet-music-into-practice.html", "mode": "guide only" }, { "input": "Find a Music Conversion or Piano Practice Workflow", "url": "https://clefdrills.com/blog/music-conversion-workflow-finder.html", "mode": "guide only" } ], "notes": [ "MCP clients can read journal resources and call the four listed deterministic tools. Other browser controls are not exposed as MCP tools.", "Native MIDI input receives played notes; it does not import MIDI song files.", "Choose a useful conversion workflow before offering optional Clef note-reading practice." ], "mcp_transport": "streamable-http", "mcp_tools": [ "find_music_guides", "transpose_chords", "spell_piano_chord", "tab_to_piano_notes" ] }