What is folk music?

The traditional music that is played during an event, Jatra, fair, festival, etc is called folk music. Folk music is associated with a particular place, caste, religion, event, etc. It is named after the famous person of a caste or its shape or the tune it produces. The folk musical instrument are made using the local materials. The manufacturing and way of playing such musical instrument differs from one musical instrument to another. Folk music is almost mandatory while singing folk songs.