ANSWER: For starters, it should be stated that the devil is indeed real and retains much of the power and abilities he was given upon creation. He is God's adversary. In fact, the word Satan means adversary, enemy and accuser. One of the Scriptures related to your question about the devil and his musical talents is found in Job 38.
God questions Job in order to reinforce the point that he lacks the wisdom, power and authority to judge the actions of his Creator. The Lord, during his correction, reveals the musical talent all the angels, including the devil, were blessed with upon their creation. He states, "Where were you when I laid the foundations of the earth? . . . When the morning stars (including Lucifer, who became the devil) sang together and all the sons of God shouted for joy?" (Job 38:4, 7, HBFV).
The word "stars" in Job 38, in this context, is a synonym for angels. Both the Jamieson, Fausset, Brown and Matthew Henry commentaries confirm that "morning stars," as used in this verse, are indeed referring to angelic beings. Revelation 1:20 also uses the word stars to represent angels (Revelation 1:20).
The devil, as the temporary ruler of this evil world (2Corinthians 4:3 - 4, Ephesians 2:2, 6:12), influences what we hear and see, whether it is through radio, television, the Internet or other means. He musical talent, which he still retains even though he has rebelled against God, is also used to help deceive humanity.
Satan's twisted talent for music is used to convey messages that are destructive (especially self-destructive), degrading, obscene and anything else that opposes God's way. Be careful what you hear or sing.
Both righteous and evil angels do have the ability to sing and make music, with varying degrees of musical (although in some cases perverted) abilities. This, however, begs one question. Should we sing songs to God? The Apostle Paul thought so! Music is an important part of worshipping God.
. . . speaking to one another in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord (Ephesians 5:19).
But at midnight Paul and Silas were praying and singing hymns to God, and the prisoners were listening to them (Acts 16:25).
The book of Psalms is a book of songs or musical compositions on many diverse topics, such as worship, jubilation, praise, lament, Messianic prophecies, judgment, etc., all set to music. God fully desires and expects that we sing songs to him and about him, in spite of the fact that the devil has perverted his musical abilities in order to advance his own kindgom.