<p>My D graduated 3 1/2 years ago but of her MT friends, I don’t know any who had a background in show choir. I also cannot think of any of our family actor friends who had that type of experience. Most had a combination of one or more of these types of training/experience - arts h/s, shows in school/community/professional theatre, private dance/voice/acting lessons, summer programs/camps. Almost all of the successful (working the most consistently) actors we know are also excellent musicians. They play one or (usually) more instruments, write their own music and songs, perform regularly, even now as professionals and even when employed in Broadway/off-Broadway shows. Most have CDs out.</p>