This collection contains the records of the Charles Ives Centennial Festival that took place in Miami in 1974, celebrating the composer's 100th birthday. The collection includes correspondence that documents the planning process, programs for events celebrating Ives in Miami and elsewhere, articles and reviews, photographs, and official documentation.

The papers document activities of Pepe Delgado (1917-1990), a Cuban musician and composer of popular music. He left Cuba in the early 1960s and settled in the United States, dying in Miami in 1990. He was well known as a composer in Miami, New York, and throughout Latin America. The bulk of materials in this collection consist of manuscript and published music scores composed by Pepe Delgado. Various genres are represented in his compositions, such as waltzes, boleros, salsas, and merengues. The papers also include scrapbooks, photographs, correspondence, clippings and awards.