Chords. Scales. Tuner. Metronome.
A public reference for guitar players. Open data, open theory, open audio. No accounts. No paywall. No analytics. A small site that does four things and doesn’t ask anything in return.
Chord Library
39 fingerings · standard tuningOpen shapes, dominant and major sevenths, sus variants, power chords, and the common barre voicings. Filterable. Searchable.
Open →Scale Trainer
12 scales · full fretboardPick a root, pick a mode. The entire neck lights up — root in cyan, scale tones outlined. Modes from Ionian to Locrian, plus blues and pentatonics.
Open →Chromatic Tuner
Web Audio · YIN detectorIn-browser. Audio stays on your device. Sub-cent precision via parabolic interpolation on the YIN cumulative-mean-normalized difference.
Open →Metronome
Sample-accurate · tap tempoLookahead scheduler running on the audio thread. Drag the BPM, tap the tempo, or pick a time signature. Downbeat rings higher.
Open →Plain HTML.
Plain rights.
- IThe tools run on your machine. The tuner and metronome use Web Audio; nothing leaves the page.
- IIThe chord and scale data are TypeScript files in this repository. Read them, fork them, port them.
- IIINo sign-up, no email capture, no funnel. A reference works only if you can use it without trading anything.
The Signal Chain
46 chapters · 3 editions · freeA player’s history of amplifiers, effects, and the pursuit of electric guitar tone. Forty-six chapters covering the signal path from pickup to speaker — how the gear was designed, why it sounds the way it does, and how working players have used it. Written by the same author who built this tool set.
Read free at guitar.solutions →◆ ProvenanceThe chord shapes, scale theory, and pitch-detection engine here are ported from Suede, the creator-ownership layer for AI-era music: proof of creation, programmable rights, and royalty routing for registered work. Built and maintained by Jason Colapietro.
⊕ ReadingThe Fender Stratocaster lawsuit, explained → · more on GuitarHub
Built byJason Colapietro — guitarist, author of The Signal Chain. The Signal Chain is a free book about how electric guitar tone actually works — from pickup to speaker.
Suede Labs AI builds creator ownership infrastructure for the AI era.