Over the years there have been rumours. Hot As Sun was one such album, apparently recorded somewhere between Let It Be and Abbey Road. The master tapes were stolen and held to ransom, before being accidentally erased when carried through an airport X-ray machine
It is, of course, too good to be true. But bootleggers have created editions of this "lost album" using rehearsal tapes, mostly from the Get Back sessions.
Over the years I have been thrilled to discover unreleased tracks. Back in the 90s it was That Means a Lot, If You’ve Got Troubles and 12 Bar Original. And, over time, there have been a few others. It was wonderful hearing "new" Beatles songs. Of course there is a reason they weren't released at the time, and they generally don't get played too often.
There are tracks we know are still in the vaults. At this time they are nothing more than titles. And, for the most part, I imagine they are not tracks we would play too often. But as fans and collectors, we would still love to hear them.
Unlike Neil Young or Prince, for example, I don't for one minute believe the Beatles have an unreleased album hidden away. Their time throughout the 60s is very well documented, and it's unlikely they would have had time to record a missing album. I think the best we can hope for a track or two hidden away which perhaps even they had forgotten about but might pop up on an acetate somewhere.
No, there isn't a lost album. But I can still dream.