I play second trumpet in a community big band. As most of you know the second part does most of the improvising. I'm OK with that, but when the solo is written out above my comfort level, would it be alright to take it down an octave, rather than try to hit the notes that are written in? There's an arrangement of "Speak Low" that is particularly high for me. I might add that I'm 70 years old, and my comfortable range is A above the staff. Any thing higher than that, Well the arm pressure takes over and limits my endurance.