Under his direction, parishioners at St. John's were enlisted and trained to serve in the role of cantor. Their responsibility was to lead the congregation in common sacred song and in responsorial singing. In addition to the development of the congregation's participation, the choir grew. The vested choir (an important symbol to the congregation of their liturgical role) developed a sense of ministry, thereby providing the parish on Sunday's feast and solemnities with music that was not only professional in quality but was spiritually and liturgically worthy of the celebration of the sacred liturgy.
After John-Michael left St. John's in 1991 to become director of music at St. Patrick's Cathedral in New York City, Bradley Hull assumed the responsibilities of director of music for St. John's. In addition to his skills as a composer, liturgical musician and an exceptional organist, Bradley brought his general love of music and people together in his expansion and training of St. John's choir program.
Michael Stuempfle succeeded Bradley Hull as director of music at the time of Bradley's death in 1993.
Sook Hyun Kim is currently serving as the Organist and Director of Music at St. John the Evangelist Church, continuing the tradition set by her predecessors in providing traditional liturgical music at St. John's.