Organ Vespers is a contemplative service of candlelight, chant, and music. In this service, David Sinden performs organ music honoring the Holy Cross.

The Feast of the Holy Cross is a major feast observed in the Episcopal Church on September 14 in honor of Christ's self-offering on the cross for our salvation.

The Mander organ at St. Peter’s, at 56 ranks, is the largest mechanical-action instrument in St. Louis.

This service is free, and all are welcome. There is ample parking in the lots surrounding the church.