Contains papers relating to the BYU choirs that Mack Wilberg directed, except BYU Men's Chorus and University Choral. Included are rosters and shedules. Also included are pieces they performed. It also contains papers for the courses that Mack Wilberg taught at Brigham Young University. These papers are sylabuses and homework sheets or exams given. Dates range approximately 1983-1994.

Contains papers in relation to the BYU concert choir. Includes rosters and directories. Present are also correspondence and papers written by the choir members about their experiences. There is also a design for the dresses to be worn by female members, with fabric samples. Dates range 1985-1997.

Contains papers in regards to the BYU men's chorus under the direction of Mack Wilberg. The papers contain rosters, directories and standing arrangements. There are also forms and evaluations of the choir participants. Present are also schedules and songs lists for performances. Correspondence is also included from concert viewers. The boxes contain auditions forms from many years. Date range 1985-1999.