▁contemporary ▁folk ▁music ▁heard ▁at ▁the ▁time . ▁Har per ▁had ▁an ▁interest ▁in ▁traditional ▁folk ▁but ▁did ▁not ▁consider ▁himself ▁a ▁b ona ▁f ide ▁member ▁of ▁the ▁folk ▁scene . ▁He ▁later ▁explained : ▁Har per ' s ▁record ▁company ▁had ▁different ▁expect ations . ▁" They ▁wanted ▁me ▁to ▁write ▁commercial ▁pop ▁songs ▁and ▁when ▁they ▁heard ▁the ▁album ▁I ▁made ▁for ▁them , ▁they ▁didn ’ t ▁have ▁a ▁clue . ▁They ▁wanted ▁hits . ▁And ▁I ▁gave ▁them ▁" Circ le " ". ▁Bert ▁J ans ch ▁contributed ▁sle e ve ▁notes ▁for ▁the ▁album ▁and ▁Har per ▁paid ▁t ribute ▁to ▁J ans ch ▁with ▁the ▁song ▁" Pre tty ▁Baby "; ▁the ▁B - Side ▁non - album ▁track ▁of ▁his ▁first ▁single ▁( re leased ▁in ▁March ▁ 1 9 6 6 ). ▁During ▁this ▁period , ▁Har per ▁was ▁managed ▁by ▁American ▁music ▁entrepr ene ur ▁Jo ▁L ust ig , ▁manager ▁of ▁The ▁Pent angle ▁and ▁former ▁agent ▁to ▁Jul ie ▁Felix . ▁ ▁In ▁June ▁ 1 9 6 8 , ▁Har per ▁performed ▁at ▁the ▁first ▁free ▁concert ▁ever ▁held ▁at ▁Hy de ▁Park , ▁acting ▁as ▁comp ere ▁and ▁sharing ▁the ▁bill ▁with ▁J eth ro ▁T ull , ▁P ink ▁F loyd ▁and ▁Ty ran n osa urus ▁R ex . ▁At ▁the ▁time , ▁he ▁spoke ▁of ▁co - writing ▁a ▁rock ▁opera ▁with ▁P ink ▁F loyd . ▁No ▁opera ▁resulted , ▁but ▁it ▁was ▁the ▁beginning