The League of Washington Theatres launches "Theatre Week," a new promotion trumpeting the city’s new stage season. More than 70 area nonprofit theaters will offer free special events, from play readings to open houses, and ticket discounts to upcoming productions. Among discounts on offer specific to this promotion: Preview tickets at 20% off to The Quality of Life at Arena Stage; 20% off tickets purchased during this week to Ford’s Theatre’s upcoming Black Pearl Sings!; balcony tickets at $10 to $15 apiece for patrons 30 and under for The Picture of Dorian Gray at Round House; and $10-off tickets purchased during this week to Theater J’s Zero Hour. In addition, the League will offer a free night of theater for performances Oct. 6 to Nov. 19. Theatre Week runs Saturday, Sept. 12, through Sunday, Sept. 20. Visit www.lowt.org for more details and a full schedule of activities and promotions.