The Photographs series contains biographical and professional photos of Paul Pedersen alone and with others, as well as miscellaneous photos and proof sheets.

The Photographs Series contains autographed photographs of Alban Berg, Fritz Heinrich Klein, and Bernhard Sekles, as well as photographs of Julius Schloss. Additional photographs printed in other series of the collection are listed below as well.

This series consists of public posters advertising Sonde performances, with the Sonde event number added to the verso of the poster.

The documents in this series include posters for concerts, several of which were given on Wolff’s instruments, as well as drawings and sketches of Wolff organs. These documents are not rolled like the organ plans in Series 1 but rather are spread flat

The Programmes Series contains concert programmes of his performances from 1950 to 1999 as well as programmes from performances that he attended and kept. The programmes are arranged chronologically.

The Programmes and Scripts series contains programmes of Donald Mackey and the Church of Messiah and the Renaissance Singers of Montreal in performance; as well as scripts and programming for the following series presented/performed by the Renaissance Singers: CBC broadcasts not in a series, Christian Frontiers, Sunday Chorale and Good Friday.

This series consists of programs and announcements of Sonde events, in event number order.

The Projects and Consultations series contains research and documents pertaining to projects and consultations conducted by Paul Pedersen, which were not part of his duties as professor or dean at McGill University or the University of Toronto. The series is arranged alphabetically by subject title, as indicated.

This series consists of published works by Sonde.