Hey ProductHunt, I just launched FretLabs - a web application I've built to make guitar scale practice more engaging and productive. It started as a personal project to give a little structure to my freestyle sessions and has since evolved considerably.
Features:
- 10,000+ song catalog (growing daily), or upload your own MP3s
- Automatic key signature and song section boundary detection
- Dynamic 3d fretboard with customizable scale options/controls
- Left-handed mode, support for 4, 6, and 7 string guitars
