Church music is music that is intended to be part of Christian worship in churches, chapels, cathedrals or anywhere Christians meet to worship. Church music is sacred (religious) music, but not all religious music is church music. Some music may be inspired by religion, but it may not be church music. For example, some songs are about religion, but they may not be church music. Although it uses the words of the Requiem mass, Verdi’s "Requiem", was composed for performance in a concert hall. Britten’s "War Requiem" was written for performance in a cathedral, but it was not meant to be part of a service of worship, so it would not usually be thought of as “church music”.