Differentiating between a folk song and composed song

One of the most important differences between modern music and folk music is how the songs are composed. Folksongs are the product of the everyday person: any creative person could have been the creator of the folk songs we still sing today.

Explanation:

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One of the most important differences between modern music and folk music is how the songs are composed. ... Folksongs are mostly improvised or modified while performing, while modern music is generally rehearsed before being performed in public.

Folk song: songs that were sung by one singer, unaccompanied. Folk music used different scales.

Composed song:  To compose is to put something together, like a song, poem, or even yourself. ... It's been in the music business since the 1590s, and it's generally still used to describe the act of writing songs.

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