you've piped at LDS services were you talking about sacriment. I only ask because what the bishop said seems confusing to a life long member. Granted individual bishops allow or ban on their own particular whims (like ours who banned kilt wearing after the first time my sons wore theirs to church) but by and large everybody marches in lock step. Maybe the offical position has changed but growing up only voice, organ, piano or string instruments were allowed. Wind, reed and particularly brass were rarely allowed so it is amazing to me they allowed a bag pipe in. I'd have loved that.
He said only LDS approved hymns were allowed which also has been contrary to my experience. You couldn't sing religious music that was based on things like the Mother Mary or hymns which strayed to close to a protestants version of saved by Grace (the change from the old blue hymnal to the new green removed alot of my favorites) or other doctrines outside the LDS church canon but I rarely sang hymns even the mormon ones. I did classical pieces or religious songs from the old school (I Walked Today Where Jesus Walked, Holy City era) I even sang Invictus a few times (by Bruno Huhn) which while I still particularly like it the words seem a little outside of the humble follower's creed. (I still use it in warm-ups and vocal work and it's one of my dog grizzly's favorite pieces. He howls up a storm throughout it.)
Your prodject seems like a great idea