CSN (or Chorale Sine Nomine*), directed by John Satterfield, is a show choir/concert choir for young men with little or no prior high school choir experience. No audition is necessary to enroll in this choir. The fundamentals of choral singing are emphasized throughout the year. A self-guided music theory study is included in the curriculum. Performances during the year include but are not limited to the Holiday Show, Religious Arts Festival, ISSMA District Contest, Senior Choral Banquet, and community performances. Most of the rehearsing occurs during class time, but during preparations for shows, there are out of class rehearsals for 2 weeks prior to the show.

*Latin for: choir without a name