Frank Kelley has sung over one hundred opera roles with companies including the San Francisco Opera Company, Opera Theater of St. Louis, the Cincinnati Opera, the New Israeli Opera, the Theatre de la Monnaie, the Frankfurt Opera, Wexford Festival, El Gran Teatre del Liceu, The Dallas Opera, the Glimmerglass Festival, Odyssey Opera, Boston Lyric Opera, Opera Boston, Florentine Opera, Opera LaFayette, and the Opera de Monte Carlo. Kelley was involved in several seminal productions directed by Peter Sellars including Così fan tutte, Le nozze di Figaro, Die Sieben Todsünden, and Das Kleine Mahagonny—the Mozart operas were recorded by Decca and Austrian Public Television and were broadcast in the United States on the PBS show Great Performances.
Kelley has sung with the Boston Symphony Orchestra, the Cleveland Orchestra, the Chicago Symphony Orchestra, the National Symphony, the Dallas Symphony, the St. Paul Chamber Orchestra, the New World Symphony, and the Orchestra of St. Luke's. He has more than twenty recordings on the Naxos, Teldec, London, Erato, Telarc, and Harmonia Mundi labels.
He has performed medieval and Renaissance music with Sequentia, the Boston Camerata, and the Waverly Consort, and he performs baroque music with Sarasa, the Handel and Haydn Society, Boston Baroque, Emmanuel Music, Tafelmusik, the Bach Ensemble, Concert Royal, Music of the Baroque, Opera Lafayette, the Smithsonian Chamber Music Society, and Aston Magna.
In addition to the Conservatory, Kelley currently teaches at the School of Jewish Music at Hebrew College and is the voice teacher of the Ferris Fellows of Memorial Church at Harvard University.