Unlike the high-energy pop-rock anthems the band is known for, "Ghost of You" is a stripped-back piano ballad. It captures the "empty" feeling that follows a breakup or the loss of someone significant.
It begins with a lonely piano melody and soft atmospheric synths. 5 Seconds Of Summer - Ghost Of You (Official Audio)
Luke Hemmings’ lead vocals carry a raw, breathy quality that emphasizes the pain of moving on. Unlike the high-energy pop-rock anthems the band is
"Ghost of You" quickly became a fan favorite and a staple of the band's live performances. 5 Seconds Of Summer - Ghost Of You (Official Audio)
Critics praised the band for their maturity and ability to handle heavy themes of mortality and heartache.
Mention if you'd like a of the music theory (chords and key).