I am just coming back after a 12 year layoff. I played from 4th grade until 11th and was a good all around trumpeter. My tone was always my strength, but my range was capped at around a G with good sound. I could pinch out a high C, but not really play in that range. I am on day 5 of coming back - comes back quick and my tone is about 80% back to normal. I had a huge breakthrough today and wondered if this is normal? I just figured how to open my throat muscles in a certain way to allow the right balance of air support to play in the upper range. I immediately have good tone up to the high C now and can play above that with lesser tone up to the double C. This seems ridiculous - is it really that simple... a change in my throat position and more air? Has anyone else experienced this radical of a breakthrough in their career? I am sure the answer is yes, I would just like to hear some great stories. I am seriously pumped.