I never was too excited by the Al Kooper first edition of the band, but did get into the second album with David Clayton Thomas. The Satie piece they flirted with briefly on that one got me cognizant of that French composer, and I got my first wiff of Billie Holiday after discovering that "God Bless the Child" was one of her signature numbers. So they helped pave the way for me to several other branches of the musical tree.
Later, Jaco was in the band! That's interesting, never heard any of that material.