If you’re looking for some musical entertainment, then the PSJA Tri-City Theatre has got you covered.This weekend, the group will perform the musical, “School of Rock.”The story is about a lover of music who pretends to be a substitute teacher as a prep school. Throughout the days, the substitute teacher, Dewey Finn, finds that the class he’s teaching has musical talent, which he then hones for an impactful and colorful story.The story is based on a film released back in 2003, with the animated Jack Black — the movie was written by Mike White. There was also a book by ...