This, also, is not a Catholic answer, but will provide additional supporting evidences. According to E. White, a prolific religious author of the 19th century and the most translated American author (by language count), Lucifer, called Satan after his fall, was the leading cherub, the leader for the angels in heaven, whose duties included being their choir leader.
Clues from Nature
It is quite possible that God had created a special angel with abilities to suit such a leadership position in heaven. We observe in nature that birds have as many as four independent sound sources in their syrinx (look at the wavy orange lines in the illustration HERE), though most, if not joining them on a single note, will use them as two pairs, producing only two different notes at once. Imagine an angel, with much greater intelligence than a bird, that had four (or more) voices and the ability to produce all parts of the harmony at once! God is certainly capable of creating such a being.
Clues from the Bible
Ezekiel 28:13 implies this very thing.
Thou hast been in Eden the garden of God; every precious stone was thy
covering, the sardius, topaz, and the diamond, the beryl, the onyx,
and the jasper, the sapphire, the emerald, and the carbuncle, and
gold: the workmanship of thy tabrets and of thy pipes was prepared
in thee in the day that thou wast created. (Ezekiel 28:13, KJV)
That this passage cannot actually apply to the human "prince of Tyrus," to whom the message is ostensibly addressed, is plain enough from the facts presented. No human of Ezekiel's era would ever have been in Eden, nor could have been. The Garden of Eden no longer existed on earth at any point past the Flood.
White's Testimony
Of the events taking place immediately after Lucifer's/Satan's fall and expulsion from heaven, White wrote (1870):
Satan stood in amazement at his new condition. His happiness was gone.
He looked upon the angels who, with him, were once so happy, but who
had been expelled from Heaven with him. Before their fall, not a shade
of discontent had marred their perfect bliss. Now all seemed changed.
Countenances which had reflected the image of their Maker were gloomy
and despairing. Strife, discord, and bitter recrimination, were among
them. Previous to their rebellion these things had been unknown in
Heaven. Satan now beholds the terrible results of his rebellion. He
shuddered, and feared to face the future, and to contemplate the end
of these things.
The hour for joyful, happy songs of praise to God and his dear Son had
come. Satan had led the heavenly choir. He had raised the first note,
then all the angelic host united with him, and glorious strains of
music had resounded through Heaven in honor of God and his dear Son.
But now, instead of strains of sweetest music, discord and angry words
fall upon the ear of the great rebel leader. Where was he? Was it not
all a horrible dream? Was he shut out of Heaven? Were the gates of
Heaven never more to open and admit him? The hour of worship draws
nigh, when bright and holy angels bow before the Father. No more will
he unite in heavenly song. No more will he bow in reverence and holy
awe before the presence of the eternal God. Could he be again as he
was when he was pure, true and loyal, gladly would he yield up the
claims of his authority. But he was lost! beyond redemption, for his
presumptuous rebellion! And this was not all; he had led others to
rebellion and to the same lost condition with himself—angels, who had
never thought to question the will of Heaven, or refuse obedience to
the law of God till he had put it into their minds, presenting before
them that they might enjoy a greater good, a higher and more glorious
liberty. This had been the sophistry whereby he had deceived them. A
responsibility now rests upon him from which he would fain be
released.
Obviously, though he no longer directs heaven's choir, he still has vast musical ability. And he uses the music in combination with the message he wishes to promote. The backmasking for certain musical pieces is incredible--not even a modern computer (ChatGPT?) could likely produce anything like it: whole sentences that, played backwards, result in intelligible whole sentences with a different set of consonants. The world's best poets do not have this skill without supernatural assistance.