1. Determine the Stuck Key:
- Identify which key is stuck by pressing down and releasing all the keys.
2. Open the Lid:
- Raise the lid of your piano to access the key mechanism.
3. Locate the Key Lever:
- Under the lid, identify the lever (also known as a key frame or key stick) attached to the stuck key.
4. Examine the Strike Point:
- Check if the strike point, where the hammer hits the string, is misaligned or obstructed.
5. Look for Obstructions:
- Inspect the key lever for any tiny objects or debris that might be lodged or blocking its movement.
6. Clean Under the Key:
- Gently remove any dust or debris from under the key and its corresponding hammer assembly.
7. Check the Key Pin:
- Ensure the key pin is not bent or misaligned. If it is, gently nudge it back into place using a small, flat-headed screwdriver.
8. Tighten Screws:
- Tighten any loose screws you observe in the key mechanism. However, be careful not to over-tighten them.
9. Test the Key:
- Gently press and release the stuck key. Check if the key is now moving freely and sounding correctly.
10. Repeat if Necessary:
- If the key is still stuck, repeat the process of checking and cleaning the key lever, strike point, and key pin.
11. Seek Professional Help:
- If the key remains stuck or if you encounter any other issues, seek the assistance of a professional piano technician. They have the expertise and tools to troubleshoot and fix more complex issues.
Remember, fixing stuck piano keys is a delicate process, and excessive force or incorrect adjustments could cause damage. If you're not confident in your ability to fix the issue, it's best to consult with a professional who specializes in piano maintenance.