A question for you??
Who decided to change your hymnals then? I pray for the day, but there is no way I can get involved. But I am passing your post on to someone who can. (Has a daughter who plays the organ!)
The choir director selects the hymns and prints up a music sheet for each service. He pulls them from various hymnals, including Adoremus and the 1940 edition of the St. Gregory's Hymnal (the whole choir has those). He occasionally has to toss in "Weagle's Ings" or "Here I Am Lord, Here's Your Pizza" to mollify the old retired hippies in the parish, but he's trying to wean them and it seems to be working.
Until we get the hippies stabilized, there would be a lot of resistance to a traditional hymnal.