Today music is used to promote transgression and Idolatry examples: lyrics that say "cheat on your wife" or "big rims big money" etc. (note: the music only gives strength to the evil words and the agenda of the song but music itself is harmless) below are some examples in the bible of how music can be used to influence people for good or for evil.
Dan 3:7 Therefore at that time, when all the people heard the sound of the cornet, flute, harp, sackbut, psaltery, and ALL KINDS OF MUSICK, all the people, the nations, and the languages, fell down and worshipped the golden image that Nebuchadnezzar the king had set up.
King Nebuchadnezzar used musick to seduce the people to worship the golden image which was Idolatry but three Jews did not which were Shadrach, Meshach, and Abednego
2Ch 7:6 And the priests waited on their offices: the Levites also with instruments of musick of the LORD, which David the king had made to praise the LORD, because his mercy endureth for ever, when David praised by their ministry; and the priests sounded trumpets before them, and all Israel stood.
King David used musick to worship and minister to Yahawah before all of Israel. Also young David used musick to calm Saul when Yahawah sent a evil spirit on him.(see pic up top)
1Sa 16:23 And it came to pass, when the evil spirit from God was upon Saul, that David took an harp, and played with his hand: so Saul was refreshed, and was well, and the evil spirit departed from him.
Music is a vehicle for witchcraft(mind control) its a powerful tool used to influence people in a certain direction. Music is used heavily in Movies cause you yourself know in certain scenes the music in the background would move you to emotion, especially in dying scenes. I'm bold to say that without music the Movie would be less dramatic.