There's a guitar solo from the Pink Floyd album "Animals" that you may not have heard, because it was only released on 8-Track back in the day. On other formats, the album starts with "Pigs on the Wing Part 1", and ends with "Pigs on the Wing Part 2".
But 8-Tracks played differently from records and cassette tapes and obviously, CDs didn't exist in the 1970s.
So in order to make the album flow better, they combined the two parts, and linked them with a solo, which basically made them a single track. But only on 8-Track. When it went out of print, it stayed lost until the Internet came along. Check it out!