A musical horn is a type of horn that produces melodies or musical notes instead of just a standard sound. These horns are often used in parades, celebrations, and festive events, adding a playful and cheerful atmosphere. They can be found in various forms, including car horns that play tunes and toy horns designed for children. Musical horns can be powered by air, electricity, or batteries, depending on their design. Some models allow users to select different songs or sounds, making them versatile for different occasions. They are popular in carnivals and festivals, where they enhance the overall experience with their lively sounds.