MUSIC . Music Picks Rob Mazurek’s Exploding Star Orchestra Sextet Tue., Sept. 11, 8 p.m., $12, International House, 3701 Chestnut St., 215-387-5125, www.arsnovaworkshop.com. by Shaun Brady print email reply rss feed Published: Sep 4, 2007 ADVERTISEMENT <a href=”https://www.citypaper.net/openads/www/delivery/ck.php?n=a10b36a8&cb=INSERT_RANDOM_NUMBER_HERE” target=”_blank”><img…