Lung capacity exercises
I'm practicing a solo for an audition that I'll be doimg towards the end of the summer, and there isn't a lot of room to breathe. Does any1 know any exercises to practice improving my lung capacity? (Note: this is also something I've wanted to do for a while since my air support could be better. I also think moving up another half reed size would be beneficial, but I don't think I yet have the air support to do that).
I appreciate any and all input!
Edit: just as a note, I am not a beginner and do know some exercises for this from my (so far) 5 years in marching band - I'm mostly just trying to learn a few more so I can practice it better (though I try to practice consistently, it's been a few months since I've actually played in a band, so my air capacity and technique have gotten rusty)