When asking a symphony player to single out the most important transposition for a trumpet, I am sure you would get many suggestions. Transposing trumpet parts in a symphony is a way of life. Some transpositions are easy and some are extremely difficult. Transposing in a show usually begins with the vocalists request to lower her/his key one half-steps because of the singer’s cold. Transposing on a combo job where you are playing from a fake book means that whatever you see, you will have to transpose it into your trumpet’s key which is up a full step. When considering…