Happy Guitar

Plug in, hear yourself through a real neural amp tone, and let the app grade what you play — live, in the browser.

Visit Happy Guitar

Overview

Happy Guitar is a free, client-only browser practice room. It pairs a fretboard trainer with real neural amp tone — the same NAM Web engine that runs a Neural Amp Modeler as a Web Audio node — so you sound good and get coached on one screen. Play the prompted note and the app detects your pitch, lights it up on the fretboard, and advances automatically.

Key Features

• Live practice - Play through a real captured amp tone and get graded in real time by microphone pitch detection, with the note you play mirrored on the fretboard
• Bring your own tone - Pick a bundled capture or drop in your own .nam model
• Fretboard Notes - Identify notes anywhere on the guitar fretboard
• Common & Barre Chords - Learn and practice open and barre chord shapes
• Triad Master - Practice triads across different inversions and string sets
• XP System - Track your progress with levels and experience points

Technologies

• Vite
• TypeScript
• Web Audio API (AudioWorklet)
• @happysoftware/nam-web (real Neural Amp Modeler inference)
• CSS3

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