 Music Corporation, "Shake It Off" is set in common time with a tempo of 66 beats per minute.It is composed in the key of D major with Carey's vocal range spanning from the low-note of D3 to the high-note of G#6.The song follows in the chord progression of Bm7–Am7–Gmaj7 The verses and chorus remain in a narrow voice range, until according to Jon Pareles of "The New York Times", Carey "gives herself a few of her old sky-high notes as a background flourish" near the song's end.