Author: Paul Aviles
Date: 2021-08-03 22:58
I am completely in agreement with Karl that a negative pressure test is better for finding minor leaks. Positive pressure is great for exposing a poor spring tension.
The Eb/Ab key is a bit tricky. Since it is large, it blows open easily (playing conditions included). So I tend to make that key's spring tension just slightly more so than what balances with the other three around it. That said, you can still blow that open pretty easily.
To answer the first question last, if you have cork (or Valentino Masters) pads installed properly with good spring tensions, the clarinet will play with optimum power and resonance. If you'd previously had a leak, and then play on everything all tightened up, you'll REALLY feel and hear the difference.
...............Paul Aviles
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