Choir members exhibit a high degree of dedication and commitment. Instrumentals, and vocal solos or small groups provide music in the absence of the choir. Choral repertoire is selected from the rich heritage of earliest centuries through the 20th century. Two services in which choral music is emphasized are the Ash Wednesday service, traditionally held in Rothko Chapel, and Tenebrae, a Good Friday service. The hymnal used in Covenant's worship is the 1990 Presbyterian Hymnal.
Hymns play an important role in worship and are chosen to enhance the lesson of the day.
The congregation learns new hymns readily. The congregations learns new hymns readily, and congregational singing is vigorous with the uplifting support of the historic Hook and Hastings pipe organ . Instrumental music is considered to be an intrinsic part of the worship service. The Prelude does not precede the worship hour but is treated as the beginning of worship. The congregation remains in silence through the Postlude.