There are a number of songs that profess to be the longest ever, including a bunch of AI-powered composition programs that generate theoretically endless tunes. But that seems to be kind of a cheat because a machine is making the music.
If we look to the Guinness Book of World Records, they have declared that the longest officially released song is “The Noise Militia (#38/76)” by Steve Lieberman, an American performer. It runs 35 hr 41 min 9 sec and was released on 3 December 2020.
Now, though, the Guinness people will have to consider “Song for First Contact” by the Pocket Gods, a British band that has up until now become infamous for releasing about 6,000 songs that are around 30 seconds long. (Guinness is well-acquainted with the Pocket Gods having recognized them in a number of categories for their short songs.)
The new composition ticks along for 48 hours, cut into 16 sections of three hours each. “Song for First Contact”–and yes, it’s inspired by the possibilities of finally coming face-to-face with aliens–will be officially released at the end of the month. But if you want to get a jump on things, it’s already on SoundCloud.