I have always considered something became a folk song, in some cases you might argue very briefly, If used for a "folk purpose".

When my daughter (now 35 years old) was an infant, some nights she was very resistant towards falling asleep, and it was my turn to render her sleepy while my then-wife and my stepdaughter's were in the living room watching a movie that Knight have had hopes of watching most of, myself, I'd dim down the lights and set up the armless rocking chair near the crib and start singing her whatever lullabyes I knew. Sometimes, I would run out of established lullabyes and sing something nice and slow. Whatever I sang to kill t