Diana McMullen is a musicologist and concert organist. After receiving an A.B. in music from Smith College, she attended the University of Michigan-Ann Arbor, where she earned two Master of Music degrees (musicology and organ performance) and a Ph.D. in musicology. As a Fulbright Scholar and the recipient of two Deutsche Akademische Austauschdienst (DAAD) grants, several grants from the Deutsche Forschungsgemeinschaft (DFG), and a Max Planck Institute grant, she has conducted research on the German Lutheran chorale at the time of Johann Sebastian Bach and Renaissance dance music, working in archives throughout Germany. As a concert organist, she has performed in the United States, Canada, and Europe. As director of the Union College Chamber Singers, she toured England with the ensemble, appearing at several prestigious cathedrals. Before joining the Union faculty, she taught at the Ann Arbor and Dearborn campuses of the University of Michigan, UCLA, and Adelphi University, where she also served as chair of the department. While at the University of Michigan-Dearborn she was director of the concert series at the Henry Ford Estate.
She is currently working on a seven-volume project with Wolgang Miersemann on the Gesangbücher of Johann Anastasius Freylinghausen (1670-1739), the most important works of their type published at the time of Johann Sebastian Bach.