Does anyone have any good advice on learning to use less pressure? Lately in marching band (which i use a little more pressure in marching band to get the feet out of my sound, which is what i think everyone does) i have been getting tired real quick, face sore that night, and it reflects the next day and get's worse and worse until i get a day off or rely on an Aleve to help the muscles relax. Two part question, I read somewhere a warmup is only needed to 'fix' how you played wrong the day before. My teacher today said warmup is all mental (which i've heard several times before) and your lips have the most blood or something in them, and are always warm. I'm not sure I heard him right on the last part, but for me I physically cannot play like above an E without a warmup. Even with a HUGE breath and the fastest air it feels like my face is just readjusting to the mouthpiece and I need to loosen up my lips a bit. I have noticed if I don't play a day, the next day I can play maybe a G on top of the staff with no warmup, so my main concern right now is learning to use less pressure. In class sometimes I take my pinky out of the octave key, sometimes I play lip slurs one handed just to ensure no pressure is added, but I only sound the same up to a G above the staff (I can only play a high C really), anything above G on the staff for me one handed I can play, just not sound as good. So what should I do to use less pressure in chamber season and marching season?