The singer and actress has died at the age of 78.
I only know of only one song by her but it is one that I like a lot, mainly because of the musical arrangement with the English horn (a member of the oboe family) that accentuates the plaintiveness of her vocals. It is As Tears Go By, released in 1964, when she was just 17 years old.
The song was composed by Mick Jagger, Keith Richards, and Andrew Long Oldham, who was the manager of the Rolling Stones. In 1965 the band released their own version of the song with the English horn being replaced by guitar but still capturing the plaintiveness of the melody. Both versions used an acoustic 12-string guitar.
Interestingly, while the song evokes the feeling of an old person looking back on life, at that time Faithfull was just 17 and Jagger and Richards just 20.