Lately I have been noticing that my low D, Eb and Ab in the staff have been so sounding unclean and today I finally found the problem. For some strange reason I had relocated my right hand in a different position than normal. This is usually caused by playing and not listening to the product.
Once I found the cause, the solution was very easy. For some of you this might be a problem and you might not know what causes it so here is a test to see if a slightly different hand position will help.
Here are the steps to check out your hand position;
1. Place your valve hand in your normal playing.
2. Play the attached exercise slowly and slur all of the notes.
3. If you hear roughness when playing low D’s the attached sheet may help.