Their first No. 1 song, "Last Train to Clarksville" in 1966, was written by Tommy Boyce and Bobby Hart, but other top songwriters of the day were involved Neil Diamond, Gerry Goffin and Carole King and Harry Nilsson.
Layers of cleanly picked guitar, shuffling drums and an organ (or is that a distant train whistle?) weave around Cabic until the whole song sounds like a sigh.