When your alto saxophone's G key produces a G sharp sound, it suggests that the key is not closing properly. This could be due to a stuck pad or a mechanical issue. In this guide, we will walk you through several steps to troubleshoot and potentially fix the issue without taking it to a shop. Follow these detailed instructions to ensure your alto saxophone plays in tune and sounds as it should.

1. Inspect the Key Mechanism

1.1 Check for Obstructions

The first step is to check for any dirt, dust, or debris around the G key and the surrounding keys. Use a soft cloth or a small brush to gently clean the area. This can help remove any obstructions that might be preventing the key from closing properly.

1.2 Check for Sticking Keys

Gently press the G key and observe if it feels stuck or sluggish. If it's not moving freely, it may need some adjustment. You can try pressing the key down and releasing it several times to see if it loosens up.

2. Lubricate the Key Mechanism

2.1 Use Key Oil

If you have key oil or a similar lubricant, apply a small amount to the pivot points of the G key. This can help free up any sticking mechanisms. Be careful not to use too much, as excess oil can attract dirt. Proper lubrication can significantly reduce friction and make the key mechanism smoother.

3. Examine the Pads

3.1 Check the Pads

Make sure the pads under the G key are not damaged or misaligned. If the pads appear to be in good condition, try pressing the key down and releasing it several times to see if it loosens up. Pads can sometimes become dried out, so if they feel stiff, you may need to clean them with a soft cloth and key oil.

3.2 Humidity and Temperature

Humidity can cause pads to swell and stick. If you suspect this is the issue, allow your saxophone to acclimate to a stable environment for a while. Maintaining stable conditions can prevent future sticking issues.

4. Adjust the Springs

4.1 Spring Tension

If you feel comfortable doing so, check the spring tension for the G key. If the spring feels weak or stretched, it may need adjustment. Be sure to handle the spring with care; bending or breaking it can cause the key to malfunction.

5. Check for Alignment

5.1 Alignment of Keys

Ensure that the G key is properly aligned with the tone holes. If it seems misaligned, gently adjust it back into place. However, be cautious not to apply too much force, as this could damage the key or body of the saxophone.

6. Temporary Fix

6.1 Paper Trick

For a temporary fix, you can place a small piece of paper between the G key and the body of the saxophone to create a slight gap. This can help prevent the key from closing completely while you troubleshoot. This is a quick solution, but it should not be relied upon for extended periods.

7. Consult Online Resources

There are many videos and forums online where saxophonists share tips on repairs. These resources can provide additional insights or techniques specific to your model. Checking these resources can offer you alternative methods to solve the issue and save you from purchasing expensive repairs.

Final Note

If these steps do not resolve the issue, or if you are uncomfortable performing any of these actions, it may be best to take your saxophone to a professional repair technician. Regular maintenance is crucial to keep your instrument in good playing condition, and a technician can provide a thorough check-up and fix any underlying issues.