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.
Barlow's vocal range includes the notes between Cm and A3, featuring 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.