Materials documenting the engagements and performances of the CCC. This subseries focuses on engagements within the Chicago area, although some engagements outside of Chicago with an overnight stay are included. There are a wide range of engagements represented such as performances at churches, festivals and conferences, public events, school concerts, and memorial services. Also covers annual CCC events Songs of the Season and the Gala. Types of material include performance schedules, contracts and planning correspondence, rosters of participating singers, programs, clippings, event statistics, and non-booking information regarding cancelled or incomplete engagements.

See also Series 4: Choirs and Singers for additional choir notices and performance information.