Constant repetition of the same words is an insult to intelligence. It is contrary to all sense and reason to repeat the same words over and over again, six eight or ten times over. The lyrics should be clear and everyone should sing them in unison. One of the most shocking custom of all music is when different persons sing different words at the same time. This is an intolerable insult on common sense and is utterly incompatible with any spiritual or devotional value.
Songs wear out.
We seldom relish a new song at first hearing. Then once we learn a new song it becomes delightful expression in worship. However, finally once we know it as a familiar song we begin to lose our delight for it. A narrow view of worship style is simply bigotry. What mischief has arisen from people's attachment to this or that worship style.