The smallest hall in the Auditorium complex, Sala Petrassi (Petrassi Hall) nonetheless holds 700 people in a configuration similar to a traditional theatre, having both an orchestra pit and a stage structure.
The three walls that define the stage area (two lateral and one above) can be rotated to change or modify the stage dimensions. This Sala can accommodate lyric opera, chamber music or Baroque music concerts, theatre works and symphonic music.