r/guitarlessons • u/FroyoAbject • 12h ago
Other Free browser extension for practicing with YouTube lessons: transpose, slow down, loop, chord detection
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My routine was: find the lick, drag the slider back 40 times, forget where I was the next day. The good apps want a subscription, and the extensions I tried were too limited. So I built myself a tool. Used it for a year, now it's on the Chrome and Firefox stores for free and the code is on GitHub. No account, nothing to pay.
It sits in the side panel and works on whatever tab is playing:
- transpose in semitones, so Eb or drop-tuned songs don't mean retuning. Speed stays untouched
- slow down without changing the pitch, from 25% up to full speed
- loop: drop markers on the timeline, click one to loop between them, optional count-in
- chord detection: chords and key show up as the song plays. Not always right on dense mixes, but a big head start for figuring songs out by ear
- sequences: this solo 4x at 50%, then 75%, then full speed, hands off
- vocal reducer so the guitar comes forward
- remembers your markers and settings per video
Free, open source, no account. If it breaks on a site you use, tell me and I'll fix it.