In accordance with the ecumenical and liturgical guidelines for interfaith marriage ceremonies, Serry performed sacred music reflecting a variety of religious traditions, including: Catholicism, Protestantism, Judaism, and Eastern Orthodox. His brief concerts were presented prior to each wedding ceremony on both the organ and the piano. Musical accompaniment was often provided for vocal soloists, hazzans, as well as cantors. His concerts featured classical and contemporary works by such composers as: Bach, Ludwig van Beethoven, Leonard Bernstein, John Denver, Mendelssohn, Jean-Joseph Mouret, Wolfgang Amadeus Mozart, Purcell, Pyotr Ilyich Tchaikovsky, Satie, Vivaldi, Wagner, Charles Widor, and Andrew Lloyd Webber.