Barlow's voice spans between the nodes of Cm and A3 and has a basic chord progression of C–A–B–Cm in the pre-chorus and E–B–D–A–C–E–A–Cm in the chorus.
The vocal range of Barlow extends from the nodes of Cm to A3, with a primary chord sequence of C–A–B–Cm during the pre-chorus and E–B–D–A–C–E–A–Cm for the chorus.