Caralyn Spector writes in that if you email cuarts@columbia.edu by 5PM, you’ll get free tickets to the Mozart and Bruckner extravaganza happening tonight at Carnegie Hall. The show starts at 8PM, with a pre-concert lecture starting at 7PM. This is highly recommended for Music Hum students, as well as anyone who’s never heard a Bruckner symphony before (they’re playing the 5th).