▁post mod ern ▁fan fare ". ▁ ▁Rec ording ▁ ▁Back ing ▁track ▁The ▁Beat les ▁began ▁recording ▁the ▁backing ▁track ▁for ▁the ▁song ▁at ▁Olympic ▁Sound ▁Studios ▁in ▁south - west ▁London ▁on ▁ 1 4 ▁June ▁ 1 9 6 7 . ▁The ▁produ cers ▁of ▁Our ▁World ▁were ▁initially ▁unh appy ▁about ▁the ▁use ▁of ▁a ▁backing ▁track , ▁but ▁Martin ▁ins isted , ▁saying , ▁" we ▁can ' t ▁just ▁go ▁in ▁front ▁of ▁ 3 5 0 ▁million ▁people ▁without ▁some ▁work ". ▁The ▁line - up ▁was ▁L enn on ▁on ▁har ps ich ord , ▁McC art ney ▁on ▁double ▁bass , ▁Harrison ▁on ▁viol in ▁– ▁three ▁instruments ▁that ▁were ▁un famil iar ▁to ▁the ▁mus icians ▁– ▁while ▁St arr ▁played ▁drums . ▁The ▁band ▁recorded ▁ 3 3 ▁takes , ▁before ▁choosing ▁the ▁t enth ▁take ▁as ▁the ▁best . ▁This ▁performance ▁was ▁transferred ▁onto ▁a ▁new ▁ 4 - track ▁t ape , ▁with ▁the ▁four ▁instruments ▁mixed ▁into ▁one ▁track . ▁The ▁engine ers ▁at ▁Olympic ▁thought ▁the ▁Beat les ▁displayed ▁a ▁surprising ▁lack ▁of ▁care ▁during ▁this ▁process , ▁a ▁sign , ▁according ▁to ▁author ▁Ian ▁Mac Donald , ▁of ▁the ▁group ' s ▁new ▁preference ▁for ▁random ness ▁in ▁contrast ▁to ▁the ▁high ▁production ▁standards ▁of ▁S gt . ▁Pe pper . ▁ ▁From ▁ 1 9 ▁June , ▁working ▁at ▁Studio ▁ 2 ▁in ▁E MI ▁Studios ▁( now ▁Ab bey ▁Road ▁Studios ), ▁the ▁Beat les