Is Church Music Theological?

Lester Ruth, Associate Professor of Worship and Liturgy at Asbury Theological Seminary, in his article "Lex Amandi, Lex Orandi: The Trinity in the Most Used Contemporary Christian Worship Songs" offers a very impressive analysis of the presence of the Doctrine of the Trinity, or lack thereof, in modern praise and worship songs. You can read it here. Of course, this could be leveled against some older hymns as well.