The bass of Preface
The weird sample and the organ parts on Lights On
The sexuality of Two Weeks and it's chorus
The offbeatness in Hours
The harmonies and the adlibs on Pendulum
The pace changes, vibration and lyrics of Video Girl
The fast pace of Numbers
The electro chruch gospel realness of Closer
The vocal samples and the verses of Give Up
The sensuality and the literal orgasm in Kicks
The entire production
It's so cohesive, yet every song is different. It flows flawlessly