First we must explain to our younger players just what an aperture is and how it affects our trumpet playing. When we speak of an aperture size, we are speaking of the size and shape of the opening between your lips as you produce a note. Some players prefer a small opening while other fine players prefer a large opening. What we will accomplish in this post is explain the difference and the advantages and disadvantages of both. One thing you must understand is that the air must flow between your lips in order for the air to start a…