“Graceful composure…sensitively rendered.”
Washington Classical Review

“All of the dazzling harmony and interior voice-leading made clear.”
The Boston Musical Intelligencer

Fellenberg has performed in recital at numerous colleges and universities, where he frequently gives lectures or masterclasses, including The Juilliard School, Manhattan School of Music, New England Conservatory, Harvard University, Yale University, Massachusetts Institute of Technology, Dartmouth College, Syracuse University, University of Massachusetts, Jersey City University, New York University, City University of New York, Scranton University and at notable concert venues, including Alice Tully Hall, Weill Recital Hall, Jordan Hall, Museum of Modern Art, 92nd Street Y, Cleveland Museum of Art, the Old State House (MA), Aspen Music Festival, Music Academy of the West, Bowdoin International Music Festival, Eastern Music Festival, Annapolis Chamber Music Festival, and internationally in Mexico, Ecuador, Italy, China, and South Korea.

Fellenberg is the Music Director of the Bronx Community Chorus and performs regularly with Harold Rosenbaum and the New York Virtuoso Singers. He appears on the album “A place toward other places” with the Oberlin Contemporary Music Ensemble.

Fellenberg has a keen interest in teaching. He founded and directed the New Jersey Young Artist Piano Competition, which provided scholarships and guidance to gifted high-school-aged pianists. Fellenberg formerly taught piano and chamber music at Church Street School of Music & Art, Brooklyn Musical Arts, and the Rappahannock Summer Music Camp and was a guest teacher at Manhattan School of Music (Precollege Division), National Youth Orchestra of the USA, El Conservatorio Franz Liszt (Ecuador), Shenyang Conservatory (China), and Chageun-Byeol Music Academy (South Korea).

He is on the piano faculty at Interharmony International Music Festival (Italy), the New England Flute Institute, and teaches Ear Training, Keyboard Skills, and Vocal Coaching at New England Conservatory.