One of the reasons i became a member on TM was because i have quite a few problems with playing. I got my braces off right before summer started, worked my butt off, than took a brake for a month when summer came. Well, By that time i lost my show music, and my valves were stuck and i was w/o blue juice, so i was doomed until the beginning of summer band. My tone was really, really bad when i had braces, though I was the only person in our second band who could hit a high c. Well, i lost all my range, but after working i can hit a e easily...hopefully midway through the season, ill be above a g. Ill just start with 3 questions: 1) As of late, when im marching it seems like i have a different embouchure and its very edgy, like when i had my braces on. Sometime I dont even make a sound (my guess is that my lips are touching). Luckily, this years show is a lot of stand still as the music is difficult. 2)Ways to improve tone? i will do ANYTHING. 3) People say low notes and long tones help tone, but can someone explain how? Thanks!