Files on Weill’s stage works make up the lion’s share of production history and are one of the most used of all the Research Center’s collections. Organized by title, year, country, city, and theater, these folders contain records of performances of Weill’s stage works, with a different sub-series devoted to performances of concert works, organized by city and date. Material for each stage production or concert performance is foldered separately. Files may include programs (original or photocopies), clippings, flyers or handbills, photos, press releases, advertisements, ticket stubs, etc. A separate series documents Lenya’s performances, mainly of non-Weill works. The files for her stage performances include a number of photocopied programs from her earliest days as an actor and dancer in Zurich as well as an extensive collection of playbills, clippings, and related materials from the Broadway musical Cabaret; the film sub-series includes clippings and other material on her appearances in From Russia with Love, The Roman Spring of Mrs. Stone, and Semi-Tough.

Similar files on performances of works by others that are relevant to Weill or Lenya preserve records of pop and cabaret performances by Robyn Archer, Dee Dee Bridgewater, Ute Lemper, Andrea Marcovicci, Bebe Neuwirth, Angelina Réaux, Martha Schlamme, Julie Wilson, and many more. Festivals in which more than one Weill work is programmed have their own series, which includes documentation of the 1971 Holland Festival, 1975 Berliner Festwochen, 1987 Kurt Weill Festival in New York, the two-month celebration in Düsseldorf and Duisburg in 1990, the 1998 Salzburg Festival, the 2004 Bregenz Festival, the 2009 Ravinia Festival, the 2017 Brevard Festival, and every Kurt Weill Fest Dessau from 1993 to the present. Many festivals were organized during Weill’s centenary celebration (1999-2001) in Berlin, New York, and all over the U.S. and Europe and are documented through programs, clippings, and memorabilia. Two smaller series hold similar items pertaining to symposia and exhibitions.