Possible Clues:

• Part of the Mass
• Prayer day that is coming round, at first chanted with a backing
• Part of Mass some varied: sung avidly backwards!
• Antelope's caught by assistant putting down one lamb
• Lied sung after retiring includes lyrics from liturgy
• The last part of a Mass service in most musical settings
• Badly sung idea for a religious piece
• Silver used in renovated Christian emblem