Book excerpt: This is a complete revision of a detailed resource which has been the essential guide for church musicians working in the Episcopal church for over 20 years. A Guide to the Practice of Church Music (1989) was originally written by Marion J. Hatchett, who taught for many years at the Episcopal seminary at Sewanee, was key in developing materials for The Hymnal 1982. This updated revision contains brief, but articulate discussions of the role of music in the church, the variety and nature of music ministries (people, cantor, choirs, organists, directors, instrumentalists, clergy, and music committees); principles for the selection of hymns, psalms, canticles, and other service music and their sources in materials from CPI and beyond; guidance for planning services for all rites of the church in the BCP and the Book of Occasional Services. Updated revision includes hymnals, electronic resources, and materials published since The Hymnal 1982.