The commentary Ruhul Ma’ani...
If the Islamic traditions have repeatedly stated that music fosters the ‘hypocritical soul’ within man, it is an allusion to this reality, for such an individual possesses a soul that has become polluted as a result of depravity and being distanced from piety. If the traditions also state that the angels do not enter into houses in which music is played, it is because of this pollution and uncleanness, for the angels are entities that are pure and seek purity. 2.
The harmful effects on the nerves In reality, music is one of the important factors that cause the narcosis of the nerves. In other words, at times narcotics enter the body through the mouth, just like alcohol; or by means of the faculty of smell, such as heroin; or as a result of the injection, like morphine; or, at times, by means of the ears, such as music.
It is for this reason that, at times, certain forms of music lead people into such high spirits that they come to possess a state similar to intoxication; of course, there are also times when this state is not reached, but nevertheless it does induce a state of mild stupor. It explains why many of the evils of narcotics are also witnessed in music.