rsc2a said:
I would suspect that there were a lot of really awful songs in the 1600-1800s that were part of the church service. My guess would be that they were eventually recognized as awful so we only have the comparatively good ones left. (For example, All Creatures of Our God and King was written around 1200 and is excellent. Same with the Doxology and it was written in the late 1600s.)
The songs in today's hymnals are going through this process, and as the songbooks get redone, the bad ones will eventually die out. (Well...some pretty terrible songs seem to be quite popular among some folks. The songs on the radio (i.e. CCM) are at the very beginning of this stage so it will take a bit longer although there are still some really tremendous songs being released (e.g. In Christ Alone, How Deep the Father's Love for Us).
I agree to an extent.
When I first went off to college, my pastor gave me an ancient (early 1800s) hymnal he had found as a gift. Eventually, I started reading it. What I found was a lot of songs with solid, Biblical content. There was more "meat" to the songs. It seemed like the people in that day had a better theological understanding.
I don't know if that understanding follows the hymnody, or the hymnody follows the understanding. But there have definitely been times in history where at least the lyrics of the music bore a better resemblance to the Bible. It seems like around the late 1800s early 1900s that hymns started to become POPULAR music, and hymns got commercialized and a lot of that has found its way into our hymnals.
My churches favorite songs are (Based on when we take favorites) And Can It Be, In Christ Alone, How Deep the Father's Love for Us, Bow the Knee (Ron Hamilton), My Jesus Fair (Chris Anderson), Beneath the Cross of Jesus (Getty) and my personal favorite Before the Throne of God Above. While we definitely have "traditional" services, most of those hymns were written or retuned in the last thirty years.