The longest recorded song is over 1,300 minutes long - Apparently.
The song "Longplayer" by Jem Finer, lead guitarist of The Pogues, started playing on January 1, 2000, and is set to continue playing until December 31, 2999. This perpetual piece of music is designed to last for 639 years, making it the longest song ever recorded. Finer, a self-proclaimed "musician and composer," created the song using a complex algorithm that incorporates random elements and sounds from the natural world.