OK, more Fabdom: This poignant 1964 Lennon composition was the last song on the "A Hard Day's Night" soundtrack but was released in the U.S. on "Beatles '65". John based the chord pattern on Del Shannon's '61 "Runaway". Played on only acoustic guitars, it contains two bridges but no chorus. Genial seamless transition between major and minor chords. Masterfully covered by Sir Cliff Richard and by Shawn Colvin.
Yesterday's answer: "New York Mining Disaster 1941" by the Bee Gees. As opposed to "The Bells Of Rhymney", this disaster never happened. I remember listening to this song for the first time with my dear friend Ralph Yunque and wondering where in the world that vibrato came from. The opening chord sounded somewhat like an A-minor but not quite - aha, now we know the mystery! There were rumors early on that The Bee Gees were The Beatles recording under a coded pseudonym for "Beatles Group"!