The St. John's adult choir has 60 singers and instrumentalists and is directed by Barbara Meiser. Instrumentalists include a keyboardist, bass guitarist, two acoustic guitarists, a percussionist, two flautists, and a harmonica player. The music repertoire consists of over 500 compositions featuring a wide variety of styles from traditional Catholic hymns, contemporary songs and classical compositions to hand clapping old Gospel.
St. John's Choir meets on Mondays from 7:00 - 8:30 p.m. Members attend the Mass of their choice. Besides providing music for weekend Mass, the instrumentalists and vocalists prepare for the Christmas Eve Masses and extra music for Holy Week and Easter. To sing in the choir, it is not necessary to be able to read music, but to sing on pitch, blend with the group and convey a sense of prayer in song. The Director also coordinates wedding and funeral music.