Recently I've observed that I'm mad for anomalous records. The sore thumb, the skeleton in the closet, the unknown lark, in an artist's career. Some examples:
Frank Sinatra- Watertown -- concept record written by Jake Holmes.
Del Shannon-The Further Adventures of Charles Westover --psych effort
Tommy Roe -It's Now Winter's Day --his psych effort
and so on. Frankie Valli's Chameleon, Four Seasons' Imitation Life Gazette and, for my money, all Tommy James's early seventies lps, fall into this category. Heck, maybe even Scott Walker's Tilt does -but that's more a culmination than an exception, isn't it?
I'd love to know more.