. ▁The ▁album ▁was ▁released ▁on ▁ 3 0 ▁September ▁ 2 0 1 3 , ▁through ▁RAM ▁Records , ▁Mercur y ▁Records ▁and ▁Virgin ▁E MI ▁Records . ▁ ▁Musical ▁concept ▁and ▁songs ▁Tor us ▁is ▁the ▁geometric ▁name ▁for ▁the ▁shape ▁in ▁Sub ▁F ocus ' ▁logo . ▁It ▁was ▁originally ▁used ▁on ▁his ▁debut ▁album ▁cover ▁and ▁the ▁shape ▁has ▁played ▁a ▁big ▁part ▁in ▁his ▁live ▁shows ▁as ▁well ▁as ▁in ▁promotion ▁and ▁art work . ▁The ▁title ▁track ▁was ▁written ▁as ▁an ▁intro ▁to ▁D ouw ma ' s ▁live ▁sets , ▁in ▁prepar ation ▁for ▁a ▁B ri xt on ▁performance ▁in ▁ 2 0 1 2 . ▁He ▁wanted ▁to ▁start ▁his ▁sets ▁with ▁a ▁low ▁tempo ▁and ▁gradually ▁speed ▁up . ▁ ▁" Sa fe ▁in ▁Sound " ▁was ▁one ▁of ▁the ▁earliest ▁tracks ▁to ▁be ▁completed ▁and ▁was ▁written ▁with ▁Set on ▁Da unt ▁and ▁later ▁given ▁the ▁Mary ▁O ' H ara ▁sample . ▁ ▁" End orph ins " ▁originally ▁had ▁a ▁female ▁vocal ist , ▁and ▁was ▁given ▁to ▁several ▁artists ▁but ▁in ▁the ▁end ▁Alex ▁Cla re ▁visited ▁Nick ' s ▁studio ▁to ▁record ▁what ▁would ▁be ▁the ▁final ▁version ▁of ▁the ▁track . ▁ ▁" Tw il ight " ▁was ▁written ▁as ▁an ▁ambient ▁contrast ▁to ▁the ▁club - orient ated ▁songs ▁on ▁the ▁album , ▁as ▁D ouw ma ▁viewed ▁the ▁album ▁as ▁a ▁journey ▁and ▁wanted ▁constant ▁pro gression . ▁ ▁The ▁synth ▁hook ▁on ▁" F