"Like A Rolling Stone" and, later, "Hey Jude," were said to have been ground-breakingly long for radio play when they were current hits, but I don't think either one was nearly as long as the various album cuts cited above.

Also, the 7-minute-plus "El Paso" was just about as long, and came out much much earlier. I had not been aware of that until just now. I'm certainly familiar with the song, just didn't realize how long it is ~ I suppose that shows that I've always enjoyed it enough not to get all fidgity waiting for it to conclude. (While I've certainly heard Marty Robbins sing it, I am most familiar with the song as part of the Grateful Dead catalog; among Dead songs, aseven minute running time is unremarkable: about an average duration, maybe even less.)

Another notable long song: Ray Charles' ground-breaking live-in-the-studio "What'd I Say?" was split in half to make a two sided single, "Part 1" and "Part 2." That may have been the first such two-part two-sided 45 single. The Isely Brothers "Shout" came later and was more clearly broken in half; the breaking-point is pretty well known since innumerable cover bands have long performed this popular number to include the transition passage that begins "Now wai-ai-ait a minute!"