Music majors Kris Knien and John Meier warm up at the Littlefield organ for the annual Halloween concert, to be presented tomorrow in the Walker-Ames Room, Kane. Each year students of Music Professor Carole Terry don costumes and present spooky music for the season. This year the concerts are at 12:30 and 8 p.m., with tickets – at $8 general and $5 for students and seniors – available at the door.