To say ALL rock music is Satanic is absurd… but then again there’s no denying some of it is.
I don’t deny this, although it really depends on what one means by “satanic.” If by satanic, one is referring to something that blatantly praises Satan, or talks about sacrificing to Satan, or anything else directly related to Satan, then no, not all rock music is satanic. But if by satanic, one means “immoral,” then one can reasonably put rock music in this category.
I’ve seen people saying how rock music is simply another tool that can be used for good or bad, as if it were a knife, which is neither good nor bad in itself, and whose goodness or badness is dependent on its use. This, however, is false. In the case of a knife, the knife has nothing bad about it in itself. It is only bad when used incorrectly. This is the way it is with music in general. When music is created in the ordered fashion it is meant to be created, it is a great thing. When it is disordered, it becomes bad. So music is a tool that cam be used for good or bad. But rock music, by its nature, is the bad side of music. So it is irrelevant whether it is “used for good,” because it is of its very nature not good. Saying that we can use rock music for good is like saying that we can use murder for good. If it not good in its very essence, it can never be used for good.
Why is rock music not good (purely from the view of the music itself, not the lyrics, which could be either good or bad)? It all boils down to the three components of music and how they are related, which are melody, harmony, and rhythm. Melody is targeted at the intellect, harmony to the emotions, and rhythm to the passions. All music, even Gregorian chant, has these three components of music. Because the intellect is the highest component of man’s nature (it is what makes him “like God”), and because the passions are the lowest thing in man’s nature (the only thing that makes him like the lower animals), it is clear that the melody is the highest part of music, and the rhythm is the lowest part of music (by “highest” and “lowest,” I mean “most noble” and “least noble”). Now, as long as these three things are in proper order, the music is good for the body and soul. It elevates the mind to the beautiful; it controls one’s passions; it creates a healthy mind (as demonstrated by the well-known experiments with plants and animals); it creates a healthy body, because what is good for the soul/mind is necessarily good for the body. However, when these things are disordered, it becomes an absolutely disastrous means of destroying souls. I firmly believe that if Satan had a choice between everyone on earth listening to the worst music possibly devised, and the worst film possibly devised, he would choose the music. Why? Because music enters and influences the soul like nothing else. The worst pornographic film will obviously result in some of the worst mortal sins possible, by seeing it, by later thinking about it, and by trying to do what is done in the film; however, if one listens to the most demonic, sensual, and blasphemous song that could possibly be made, it will absolutely de-humanize the person more than even the most demonic, sensual, and blasphemous movie could. This is because music, as Plato taught: “Music and rhythm find their way into the secret places of the soul.” Socrates said: “Musical training is a more potent instrument than any other, because rhythm and harmony find their way into the inward places of the soul, on which they mightily fasten, imparting grace, and making the soul of him who is rightly educated graceful, or of him who is ill-educated ungraceful.” And Aristotle, who can hardly be ignored, said, among other things, that “music has a power of forming the character, and should therefore be introduced into the education of the young.” Since music enters into the very soul and has the power of literally controlling the soul (as can be visually seen at heavy metal rock concerts), I think it can be even more dangerous than films.
But is rock music, by its very nature, music to be avoided, regardless of what the lyrics are? Every Catholic of deep faith need not even delve into the question, because it is so obvious. To imagine the Holy Family listening to rock music is, well, unimaginable. However, if one wishes to get philosophical and technical about it, he may. So, why is rock music wrong in its essence? It goes back to the components of music: melody, harmony, and rhythm. Melody should be at the top, since it corresponds to the intellect, which is the highest faculty in man. However, this does not make emotions or even the passions bad. These are a part of man, and are good when used properly. Our Lord himself expressed emotions (e.g. when Lazarus died, when he wept over the city before his death), and the passions, though they must be ordered, are good when ordered. Thus, as long as nothing crazy happens and these three components are ordered properly to be fitting for man, then the music is good.