The document lists 30 songs from the 1950s through the 1970s, providing the artist, song title, and year for each entry. It includes famous rock, pop, and blues songs from artists like The Beatles, The Rolling Stones, Johnny Cash, Chuck Berry, Jimi Hendrix, Led Zeppelin, Deep Purple, Pink Floyd, and more. The list covers the evolution of rock music over the course of about 20 years through some of the most well-known and influential songs of that era.