I was completely unaware of the early folk rock singer Vashti Bunyan, at the time when she was briefly famous in the sixties.
(I came across her story in a - not recommended - account of the kind of folk music I used to like and play: Electric Eden by Rob Young.)
Hearing her unique and appealing, close-miked, understated style of singing; and observing that she was extremely cute in an archetypal 'sixties dollybird' way (as you can see from the above) - it's hard to understand why she did not make it big.
Anyway, here are a few of the early, wistful, whimsical songs she seemed to do best.
There's a load more stuff on YouTube if you like these; including some of her earlier Pop material; and recent things she recorded - having been rediscovered after 'disappearing' for some three decades.