This collection contains the papers and musical works of renowned University of Iowa composer, conductor and musician William Hibbard. Series I of the collection - the largest portion - consists of musical scores and related materials (such as drafts and notes) for most of Hibbard's oeuvre. Many of the scores are original manuscripts, but also included are edited photocopies, performance copies, bound and published versions. Some scores are full, while others are parts for individual instruments. Series II consists of Hibbard's personal papers included are correspondence, programs and reviews, handwritten jottings from Hibbard on a number of different musical concepts and patterns, and class materials, that is, materials relating to classes taught by Hibbard at the University of Iowa. [Class Materials is distinct from Classwork, which refers to materials drawn from Hibbard's own student life.] Series III is comprised entirely of audio recordings: 5, 7, and 10-inch reels. These tapes are recordings of Hibbard's own compositions [many performed by Hibbard himself], of performances by Hibbard of the works of other composers, and of other musical performances not by or from Hibbard. Also included in this series is a professionally produced compact disc from 1991, In Memoriam William Hibbard, which brings together a number of Hibbard's compositions.