Pittsburgh Symphony reading tomorrow

Tomorrow morning the Pittsburgh Symphony reads my orchestra piece! Along with three other students from universities in the city, we'll (hopefully) get good feedback on our work, along with a sound from one of the worlds top orchestras, that I'm sure will blow my mind, even if they are just sight-reading. I'm very excited, but very nervous. What if I get torn to pieces because my cues are ugly? Or if I forgot a senza sordino marking? Or what if the third trombone gets annoyed for sitting there too long and gets up in a huff and walks out? Luckily I don't think that will happen, but I'm still nervous. My family is also coming into town to hear the piece, as well as some friends, colleagues, and faculty. All things considered, though, I'm sure it will be a learning experience, and I have confidence that what I wrote is a good first piece for orchestra(!), including soprano sax, piano, and celeste, and some hot crotale action. I'm particularly excited to hear the climactic moment where everyone's really loud (and hopefully appropriately balanced) and the weird solo xylophone at the end, like one last little duck wandering around an Icelandic lake in springtime.
Wish me luck!
(Seen right: Heinz Hall at night, home of the PSO.)