Hi Brothers:
I would say here that what sounds carnal and worldly to one person may sound holy to another and vice versa, and that is what happens when truth is subjective and not objective.
Objective truth is what God has revealed in Scripture - God is one; there is no Saviour but Jesus Christ; God never changes. But musical taste is subjective, meaning it is up to the individual.
I am told "How Great Thou Art" is Christian words set to bar music ("bar" meaning where people go to get drunk). All music was CONTEMPORARY when it was written.
We would possibly all three agree on some styles of music being just terrible, but someone else may not. I won't listen to what I call "crap" music but the world calls "rap" music. But that's my subjective taste.
The criteria is, I believe, is the music written to glorify God? The only way to know that is to have words to the music, for the "Hallelujah Chorus" is nothing but cool music if you don't have the words. Do the words tell Biblical truth and glorify God? That's the acid test, for musical tempos, tones, styles, and harmonies will always be a cause for disagreement.