Singing in church is a wonderful way to "enter into His gates with thanks-giving, and His courts with praise", wouldn't you agree?
When one is needing to connect with the Lord, it's a good way to begin.
Praise & worship, whatever it's form, as long as it's genuine, is just about the very BEST place to start. It need not be limited to song, alone, of course. Or even 'song" at all. It may take many forms, and has throughout history, and still does, in many settings. The Lord knows, and so do His people, whenever & however the connection is made.
The Spirit of the Lord inhabits the praises of His people.
That said, it's easier to be "genuine", if the material one is singing (if the praise and worship be in the form of song), one can get behind with all their heart. Conversely, uninspiring music whatever it's format, sort of just get's in the way. Which I suppose is what many other posts on this thread were about...
Now this isn't quite what others had in mind, or what I have experienced in the first person, but here's another of the previous sort; Sacred Harp Singers At Liberty Church "I'm Going Home"
They do sound well practiced.