Hey everyone, i havent posted in a while, but i am having some issues that iwould like to get you're opinions on. The most serious of these is a lack of long term endurance. Thats the only way i can really explain it. I play mostly lead on the gigs that i play, and being a high school student, i obviously play in the concert band, orchestra and ensembles. I am fine for about an hour, and then i just go dead. I have been studying privately for several years, but due to economic issues, i told myparents i would be willing to go without my teacher for a few months so long as i dont lapse into any bad habits. Basically I'll have my full range for an hour(give or take), and then just nothing. Most of my stuff is in the upper register of the horn, so i am wondering whether i should just go back to long tones? Arbans exercises? I will be seeing my teacher again soon, but again, i would just like the opinions of you all.