▁at ▁Arm strong ' s , ▁and ▁it ▁was ▁there ▁that ▁he ▁was ▁discovered ▁by ▁producer ▁David ▁Mack ay , ▁who ▁subsequently ▁signed ▁the ▁singer ▁to ▁a ▁recording ▁contract ▁with ▁E MI , ▁and ▁produced ▁his ▁break through ▁hit ▁single ▁" S ad ie ▁The ▁C lean ing ▁Lady ". ▁F arn ham ▁returned ▁the ▁favour ▁many ▁years ▁later ▁when ▁he ▁returned ▁to ▁Arm strong ' s ▁to ▁record ▁his ▁h ug ely ▁successful ▁' com eb ack ' ▁album ▁Wh is per ing ▁Jack . ▁ ▁Exp ansion ▁In ▁ 1 9 7 2 ▁the ▁company ▁bought ▁a ▁former ▁but ter ▁factory ▁in ▁Bank ▁St , ▁South ▁Melbourne , ▁and ▁converted ▁it ▁into ▁a ▁five - studio ▁complex , ▁making ▁Arm strong ▁the ▁largest ▁commercial ▁studio ▁in ▁the ▁southern ▁hem is phere . ▁At ▁this ▁time ▁Arm strong ▁was ▁responsible ▁for ▁ 8 0 % ▁of ▁the ▁locally ▁recorded ▁hit ▁records ▁for ▁major ▁labels ▁including ▁E MI , ▁R CA , ▁M ush room ▁and ▁F able . ▁In ▁ 1 9 7 4 ▁the ▁stud ios ▁were ▁sold ▁to ▁the ▁Age ▁New sp aper ▁Group ▁and ▁the ▁name ▁of ▁the ▁company ▁was ▁changed ▁to ▁Arm strong ▁Audio ▁Video ▁( AA V ). ▁ ▁The ▁studio ' s ▁success ▁continued ▁into ▁the ▁ 1 9 8 0 s . ▁Young ▁engineer ▁Doug ▁Br ady ▁joined ▁the ▁staff ▁and ▁started ▁his ▁career ▁at ▁A AV ▁by ▁recording ▁and ▁mixing ▁Australia ' s ▁highest ▁s elling ▁record ▁of ▁all ▁time : ▁John ▁F arn