ubre y ▁and ▁the ▁latter ▁by ▁Las er . ▁ ▁Their ▁father , ▁Stephen ▁Web ber , ▁contributed ▁to ▁the ▁music ▁of ▁both . ▁ ▁He ▁also ▁performed ▁additional ▁accompan iment ▁for ▁some ▁songs ▁on ▁gu it ars , ▁mand olin , ▁piano , ▁synth , ▁ban jo , ▁per cussion ▁and ▁bass . ▁Their ▁mother , ▁Susan ▁Web ber , ▁was ▁on ▁bass ▁for ▁" The ▁Guy ▁Who ▁Y elled ▁Fre eb ird ". ▁ ▁Add itional ▁performances ▁were ▁by ▁provided ▁by ▁Jordan ▁Rose ▁on ▁drums ▁and ▁Billy ▁Nov ick ▁on ▁sa x oph one ▁( al to , ▁ten or ▁and ▁bar it one ▁and ▁clar inet . ▁ ▁Rod r igo ▁Mal v ido ▁provided ▁on ▁per cussion ▁" Christ mas ▁Ain ' t ▁About ▁Me ". ▁ ▁Nick ▁Ziel ger ▁was ▁on ▁bass ▁clar inet ▁for ▁" R ock ▁Star ▁Life ". ▁Justin ▁Sch orn stein ▁was ▁on ▁bass ▁for ▁" L as ers ▁and ▁Fe el ings " ▁and ▁" Can ' t ▁You ▁See ▁The ▁World ▁Is ▁End ing ". ▁ ▁Jonathan ▁W yn er ▁master ed ▁the ▁album . ▁Engineering ▁was ▁done ▁by ▁Stephen ▁Web ber , ▁A ubre y ▁Turner ▁and ▁Ian ▁K age y . ▁ ▁The ▁album ▁was ▁edited ▁by ▁Stephen ▁Web ber , ▁A ubre y ▁Turner , ▁Max ▁Sch ad ▁and ▁Nick ▁Z ieg ler . ▁ ▁Mix ing ▁was ▁done ▁by ▁Stephen ▁Web ber , ▁A ubre y ▁Turner ▁and ▁( on ▁tracks ▁ 6 – 8 ) ▁Ian ▁K