The Microtonal Music Archive, a major resource for research and performance, brings together materials in various formats (scores, recordings, correspondence) that cover the expanse of microtonal music in the United States. The archive features works by Mathew Rosenblum, Dean Drummond, and Ezra Sims, among others. Some commercially released scores and recordings from the archive are housed in the collections of the Theodore M. Finney Music Library.