Arranged alphabetically by name of orchestra or opera for whom Rudel was conducting. Includes playbills, programs, and other printed ephemera from the following: Buffalo Philharmonic Orchestra, Caramoor, Houston Grand Opera, Kennedy Center, Mannes Orchestra, Metropolitan Opera, San Francisco Opera, and numerous others. Most materials date from the mid-1970s through the end of the 1980s. This series is not comprehensive in documenting Rudel's conducting with the New York City Opera.