Subseries 4A Exhibition Quality Playbills and Scores, contains playbills and scores identical to those found in Series 1, Production Files. These items are in pristine or near-perfect condition and are intended for exhibition purposes. This subseries was created during the initial processing of the collection during 1994 and 1996.

Subseries 4B, General Playbills and Programs contains of loosely cataloged and general quality playbills. Material in this subseries may be replicated in Series 1, Production Files and in Subseries 4A, Exhibition Quality Playbills and Scores.

Subseries 7A, Clark Gesner Papers and Collection on Triangle Club consists of materials created and used by Gesner in his involvement with Triangle Club, as well as a significant amount of material collected from other sources. The first category includes microfilmed copies of Gesner's diaries from his time on tour with the Triangle Club, Gesner's files related to the production of the Triangle newsletter, files related to the production of Triangle's Centennial Show, and administrative files including documents from Gesner's time on the Triangle Board of Trustees.

Subseries 7C, Histories of the Triangle Club and Related Materials, consists primarily of written histories of the Triangle Club and materials collected during the process of researching the history of the Triangle Club. Of particular note in this subseries are interviews with alumni conducted in 1985. This subseries also contains a small amount of exhibit materials and records of the former Triangle Listening Collection in Firestone Library.

This series consists of optical media (CD and DVD) conversions of material located in Series 8, Recordings.