I take a deep, shaky breath as my fingers close around the instrument case. I carry it against my leg and walk over to backstage. I fiddle with the lock and pry it open. My clarinet lay inside, its keys shining and the wood gently scratched. The box of reeds is tucked in my jacket, and I pull one out. I flip the reed and set it in my mouth, letting the saliva wet the wood. I take the bell out of t...