and all proceeds go back into Krannert Center events. They use many locally produced products, as well as offering organic and vegetarian selections. Non-public facilities The production level (floor 2) of the facility offers a full scenery construction shop, costume shop, and dedicated rehearsal spaces for choral, orchestra, and dance performers, plus a drama rehearsal room which is the same size as the stages in the Playhouse and Festival theaters. There are over 40,000 costume pieces, and tens of thousands of props in various storerooms. The Great Hall, Festival and Playhouse each have dedicated dressing and makeup rooms for performers adjacent to the stage entrances. Design and construction considerations The Festival, Playhouse, and Great Hall are physically separate structures from the main structure, with rubber acoustic gaskets filling the gaps between them. This prevents sound from vibrating through the floors and walls. To further reduce vibration noise, the air conditioning chillers were originally installed on the roof of the nearby Green and Goodwin Student / Staff apartments. The chillers were eventually removed and the center is now on the standard campus-supplied chilled-water system. The main hallway on the production level has an extra-wide and -high ceiling for the entire length which matches the size of the scenery shop and stage doors on the Playhouse and Festival theaters. This allows completed scenery to be moved directly from the scenery shop to the stages without the need to break apart and reassemble on the stage. All three large stages have Stage Lifts (Hydraulic lifts replaced in 1999 with "Gala" Spira-Lifts) that can be used to create a recessed orchestra pit, hold additional seating, or extend the stage depending on the need of a particular performance. The Great Hall also has two retractable rear walls in the balcony which holds an additional two rows of seating behind the stage. The space nearest the stage holds additional seating for choral use and the farthest space was originally intended to house a pipe organ. Notable performances Artists Joshua Bell, Grammy winning violinist - April 2010, March 2004, February 2018 Lang Lang, pianist - April 2010 Joshua Redman, jazz saxophonist - May 2008 Zakir Hussain, acclaimed tabla player - April 2008 Kronos Quartet, avant-garde string quartet - April 2008 Savion Glover, noted tap dancer - October 2007 Chick Corea, multiple Grammy winning jazz pianist - April 2007, April 2009 Sonny Rollins, multiple Grammy winning jazz saxophone