Complex sentence: During the late 60s Pinder was a partner in what he describes as "a rather hippie-esque business"--entitled "Let It Be" and inspired by the Beatles song of the same name--that managed Australian bands like Daddy Cool and Spectrum.
Split into simpler sentences: During the late 60s Pinder was a partner in a band management company called Let It Be "--inspired by the Beatles" song of the same name. This "rather hippie-esque business", as Pinder refers to it, managed Australian bands like Daddy Cool and Spectrum.