Virtually the same tune, Nick. Obviously attached itself to two entirely different songs - or been borrowed somewhere back in the 19th century.

Michael, I'd have thought that "the one that got away" refers to the fact (or at least Harker's assertion of the fact) that the editorial practices of collectors from previous ages, (e.g. Percy, Scott, Baring-Gould, Sharp, etc.) had already been subjected to scrutiny and found wanting. Lloyd's reputation - in Harker's day, at least - remained intact.