Free guitar and songwriting tools: transpose chords, capo, chord charts, vocal key, delay, strings.
Connect Remote server
claude mcp add --transport http tools https://sandymusiclab.com/mcp/{
"mcpServers": {
"tools": {
"url": "https://sandymusiclab.com/mcp/"
}
}
}{
"servers": {
"tools": {
"type": "http",
"url": "https://sandymusiclab.com/mcp/"
}
}
}Settings > Connectors > Add custom connector
URL: https://sandymusiclab.com/mcp/Tools 14 found in our last check
search_postsSearch Sandy Music Lab posts and pages (guitar gear reviews, buying guides, songwriting and music lessons). Returns titles and URLs.
list_categoriesList Sandy Music Lab categories with their links and number of posts, to browse a topic.
string_tension_calculatorGuitar/bass string tension from unit weight, scale length and pitch: T = UW*(2*L*F)^2/386.4. Returns lb, kg and newtons.
capo_chord_calculatorCapo chord calculator. direction "shape_to_sound" (default): the chord that actually sounds when you play a shape with a capo. "sound_to_shape": which shape to play with the capo to get a wanted chord.
open_songwriter_suiteGet the link to the free Sandy Music Lab Songwriter Suite (chords, Nashville numbers, vocal key finder, Suno style builder, lyric tools) so the user can open it in their browser.
chord_transposerTranspose chord names or a chord sheet (chords above lyrics) to another key. Give semitones (+ up, - down) or from_key and to_key. Lyric lines are left unchanged. Same as https://sandymusiclab.com/tools/chord-transposer/
delay_time_calculatorDelay times in milliseconds for a tempo (BPM): straight, dotted and triplet note values, plus reverb pre-delay. Quarter note ms = 60000 / BPM. Same as https://sandymusiclab.com/tools/delay-time-calculator/
string_gauge_finderRecommend guitar or bass string gauges for a tuning and scale length, with approximate tension per string (nickel-wound electric, plain steel trebles; within ~5-10% of brand charts). Same as https://sandymusiclab.com/tools/string-gauge-finder/
pedal_power_calculatorAdd up guitar pedal current draw and recommend a power supply (capacity with 25% headroom, outputs, isolated vs daisy chain). Use the mA, voltage and polarity from each pedal label. Same as https://sandymusiclab.com/tools/pedal-power-calculator/
name_chordName a guitar chord from the frets played in standard tuning (low E to high e). Same engine as https://sandymusiclab.com/tools/chord-finder/. Frets as "x32010" or "x-3-2-0-1-0" (x = muted). Returns the best name, alternates, notes and a shareable URL.
get_chord_chartLook up a Sandy Music Lab guitar chord chart (190 chords: 12 roots × 15 types plus slash chords). Returns the page URL, summary (main and easier shapes) and type. Same as https://sandymusiclab.com/guitar-chords/
nashville_converterNashville Number System for a major key: list the 7 diatonic chords, or convert a chord sheet to numbers (letters_to_numbers) or numbers back to letters (numbers_to_letters). Same idea as https://sandymusiclab.com/tools/nashville-number-converter/
vocal_key_finderFind the best concert key for a melody given its lowest and highest notes and a singer range (congregation A3–D5, men-led G3–C5, women-led/kids C4–F5). Tries ±6 half steps, prefers a fit closest to the middle of the range, and lists easy guitar capo shapes. Same as https://sandy…
suno_style_builderBuild a short comma-separated Suno style prompt (genre, mood, vocals, lead instrument, production, era, BPM) and an optional exclude list. Presets match the Songwriter Suite: Sunday Anthem, Quiet Devotion, Gospel Choir, Campfire, Blues Jam, Cinematic. Same as https://sandymusicl…
Details
| Endpoint | https://sandymusiclab.com/mcp/ (Streamable HTTP) |
| First published | 13 Nov 2026 |
| Last updated | 13 Nov 2026 |
| Registry name | com.sandymusiclab/tools |
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