I would put common standards on liturgical music as a very achievable first step for these two!
Wait - the Catholic church has standards for liturgical music?
After helping my Catholic wife bury her uncle, I told her that when I die, she is to put a baseball bat into my coffin during the visitation. Then, if as my coffin is being wheeled out of the church, the church musician starts playing "Wind Beneath My Wings", she is to open the casket, pull out the bat, and beat the musician until it stops.