Oldies but Goldies

Traditionally music was written for church use. The greatest rock stars for most of history wrote the hymns of the day that everybody celebrated as the latest and coolest thing. The book of psalms is like Israel’s best of worship music collection. Today’s psalm 96 explicitly encourages: “Sing a new song to the LORD!”

Johann Sebastian Bach was a hero to his contemporaries as was John Wesley to his. At some point all of this changed. When was it ever decided that church music must be two generations old before it can be called any good?
When did the church decide to no longer be the driving force of the music industry?