Horn is linked to the root KRN, and the same applies to crown, which is another symbol of the same idea, both placed at the head, conveying summit, ornamented by rays. Horns, in their symbolic use, take two main forms: the ram's, which are solar, and the bull's, which are lunar

And the priest shall take of the blood thereof with his finger, and put it upon the horns of the altar of burnt offering, and shall pour out all the blood thereof at the bottom of the altar.
Leviticus 4:30

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And Joshua the son of Nun called the priests, and said unto them, Take up the ark of the covenant, and let seven priests bear seven trumpets of rams' horns before the ark of the LORD.
Joshua 6:6

Our term horn as in the instrument has a literal root 🐑🎺

Horn is also the same root as thorn, both signifying a protruding ray, thus luminosity, the symbol of solar power, but also weaponry a symbol of physical power, and pointedness signifying summit or elevation.

And the ten horns which thou sawest are ten kings...
Rev 17:12