A special instrument with an aptitude for orchestral sounds, this baby was used to elevate the soundtrack of 60s and 70s rock music, especially. Here are a few songs from the 70s that made use of the Mellotron that you likely know. “Dream On” was written by frontrunner Steven Tyler over the course of about 6 years. “Let It Loose” by The Rolling StonesPlay videoThis song by The Rolling Stones is gospel and blues with a side of rock. On this song, there’s a string-like drone sound that’s played in the background.