▁a ▁collaboration ▁as ▁he ▁had ▁listened ▁to ▁his ▁ 2 0 0 4 ▁album ▁Chron icle ▁ 2 nd . ▁During ▁his ▁work , ▁Re vo ▁was ▁able ▁to ▁see ▁the ▁game ' s ▁R OM , ▁then ▁discuss ▁the ▁game ' s ▁vision ▁and ▁development ▁goals ▁with ▁As ano . ▁While ▁the ▁initially - ag re ed ▁track ▁number ▁was ▁between ▁ 2 0 ▁and ▁ 3 0 , ▁the ▁number ▁of ▁tracks ▁almost ▁double d ▁during ▁production ▁as ▁Re vo ▁saw ▁situations ▁that ▁needed ▁their ▁own ▁music . ▁Re vo ▁aim ed ▁for ▁a ▁nost alg ic ▁musical ▁style , ▁referencing ▁the ▁music ▁and ▁atmosphere ▁of ▁Final ▁Fant asy , ▁Dragon ▁Qu est ▁and ▁the ▁Sa G a ▁series . ▁During ▁recording , ▁tracks ▁were ▁given ▁descript ive ▁working ▁titles , ▁such ▁as ▁" Scene ▁of ▁Normal ▁Battle " ▁or ▁" S ong ▁of ▁A ster isk ▁H older ▁War fare ". ▁Multiple ▁battle ▁songs ▁were ▁created ▁for ▁the ▁game , ▁each ▁having ▁a ▁faster ▁tempo ▁depending ▁on ▁the ▁es cal ating ▁battle ▁situation . ▁Re vo ' s ▁recording ▁sessions ▁were ▁closely ▁linked ▁with ▁the ▁creation ▁of ▁the ▁game ' s ▁sound ▁source , ▁so ▁the ▁music ▁would ▁fit ▁onto ▁the ▁ 3 DS ' ▁limited ▁storage ▁space ▁without ▁losing ▁too ▁much ▁of ▁its ▁quality . ▁Once ▁the ▁music ▁was ▁recorded , ▁a ▁sound ▁environment ▁was ▁created ▁so ▁that ▁it ▁could ▁be ▁heard ▁clearly ▁through ▁the ▁ 3 DS ▁system ' s ▁speak ers . ▁While ▁there ▁were ▁concerns ▁about