In our last post we talked about the use of a modified, plastic, water bottle to improve your air intake and today we will be using another simple and readily available gadget to improve the air flow out of your body and through your instrument. Many have pondered exactly how we produce the correct air stream when playing a brass/wind instrument and in most cases, the concept has been grossly misunderstood. Here are just a few of the comments I have heard- 1. Tighten your stomach- WRONG! 2. Tighten your diaphragm- WRONG! 3. Firm up your stomach- WRONG 4. Blow…