This rarely heard guitar solo from Pink Floyd's Animals was only included on the album's 8-Track release

One of the drawbacks of the 8-Track tape format is that they played on an infinite loop, automatically switching through the four stereo tracks and then starting over again. Often, the switchover—heard as a click and then pause—would happen in the middle of a song so engineers would just fade out the song in the middle and then fade it back in. — Read the rest