Music is not neutral. The notes of music combine to create a message. You may know that before they were able to combine sound with movies, they would have people playing the piano while watching the screen. The player would match his music to what he saw on the screen. The music would create mood and atmosphere.
Music is an emotional language that speaks and has meaning.
The fall into sin means that music is capable not only of expressing goood emotions and thoughts, but also those that are sinful. Modern music styles do this a great deal. A characteristic of modern music is that the beat has come to dominate the music, over the melody and harmony. When the beat dominates and drowns out the rest of the aspects of music, the effect is to produce an atmosphere that is immoral. Often rock music has been associated with drugs, sex, and violence.