We need healthier food to stay alive. In the same way, musical twinkies can lead to spiritual malnutrition. Our spirits will die of starvation if we only feed ourselves on empty electronic junk food. In order to stay healthy, we must have more spiritual steak and less junk food. And in so far as Christian music feeds our spirit, we can compare it to steak.
Christian music has another function.
It prepares our hearts to receive the tough, uncompromising honesty of the Word. That's when the music becomes strawberry jam. Now that's a tough pill to swallow. But it will go down easier if you coat it with the jam of making melody in your heart to the Lord. Think about it.