Complex sentence: "On Top of Old Smoky" is a traditional folk song and a well-known ballad of the United States which, as recorded by The Weavers, reached the pop music charts in 1951.
Split into simpler sentences: On Top of Old Smoky is a traditional folk song and a well-known ballad of the United States. As recorded by The Weavers, the song reached the pop music charts in 1951.