Guitar Tuner

How to Use

1. Click "Start Tuning" to enable your microphone. You may need to grant permission.
2. Play a string on your guitar. The tuner will attempt to detect the note.
3. Watch the needle:
   • **Flat:** Needle points left (blue/green area) - tighten the string.
   • **Sharp:** Needle points right (red/green area) - loosen the string.
   • **In Tune:** Needle is centered (green area) - your string is in tune!
4. You can select a specific string (e.g., "E" for Low E) to focus the tuner, or let it auto-detect.