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• the lever on a lighting console that simulneosuly dims all the chanels from on to cut to the next

  crossfader
• the book compiled by the stage manager, containing all the pertinent information about the show

  prompt book
• a platform that privots on one corner

  jackknife platform
• a small drapery that runs across the top of the grand drape and hides the hardware that suspends it

  valence
• the space on the stage that is not visible to the audience

  wingspace
• a device that created a thin mist of fog throughout the stage

  hazer
• the backstage bulletin board where announcement, schedules, and other information are posted

  callboard