Next time you hear the Tower bells, pay close attention. You never know what @texascarillon is going to perform. In the hands of students in the UT Guild of Carillonneurs, the instrument used to play the bells swings easily between classical composers, top 40 hits and even theme songs from video games. Above the Tower’s observation deck and past a series of guarded doors and narrow passages, the Guild members sit at the carillon’s organ-like console, striking a system of batons and pedals to ring the bells. Spanning 4.5 octaves and having 56 bells, UT’s carillon is the largest and heaviest in Texas, with the low B flat 2 bell weighing in at 7,350 pounds and the high G7 a mere 20 pounds. Follow @texascarillon to keep up with the Guild of Carillonneurs and their performances.