Praying Twice: The Music and Words of Congregational Song

This looks like an interesting book. If there'd been a Kindle version, I would have clicked the 'Buy' (I'm so lazy these days going out to the mailbox).  Judging from the comments (many), Wren gets people thinking.

But it did send me on a rabbit trail I'd been meaning to pursue for many years. Clicking the 'associated' links on Amazon didn't get me any closer.

Here's what I'm looking for.  

The congregation I attend moved from the older traditional hymns to the contemporary.  Of course there was much discussion, the 'oldies' even begging for maybe one oldie per week. 'Nope!' said the 'contemporarians'.  'We need more young people!'.  We just can't risk even a single song or our congregation will die (literally).

I'm exagerating (and I play both styles), but is there any author that goes into what appears to be the psychology of worship/music?  Not secular.

My rabbit trail idea is that there's more to the argument than nostagia vs 'the beat'. I notice the lyrics are hard to move between the styles and the subject of the lyrics also is much different between the styles.  In Japan, the worship/music to a large degree 'is' the religion (monastic, deep bells, etc). Ditto native-american. Ditto much of Africa.

EDIT: Just adding to the rabbit trail question, I just love the monster cathedral organs (and reproduce the swedish ones at home with monster speakers ... lots here are pretty big). But obviously the 1600-1700s church participants really paid big-bucks for the effect at the time.

Thank you Rosie! Dummy me didn't think Google would deliver. Surprisingly, I found one book from 1956 that 'might' talk about it.

The PDF you found is really interesting, essentially the same issue but before 'contemporary' music.  Quite good; I wonder why the subject is not heavily invested in. This illustrates the functionality from an associated article:

'Participants' mood significantly increased from directly before the service until directly after the music and worship part of the service, although there was little change throughout the remainder of the service.'

That's been my impression.

For anyone else on the same rabbit trail, these two are interesting:

Study from a Lutheran church in Missouri: 2860.JohnsonRuddNeuendorfetal10.pdf

Liberty University paper: 5758.LibertyUniv.pdf

Thank you, Rosie!  This trail's going to take awhile.

And good luck on your suggested book; looks promising.