 The song is a futuristic @-@ esque R & B , synth @-@ driven , bass @-@ heavy urban song , featuring " bouncy " horn samples . Written in the key of C minor the song is in a " moderate R & B groove " . It is set in common time and Hilson 's vocals span from the low note of G3 to the high note of C5 " " Turnin Me On " is lyrically about physical attraction and composed in a hard @-@ edged tone . " MTV Buzzworthy described the song " as one @-@ part Rihanna ' Umbrella ' and two parts Beyoncé ' Ring the Alarm ' " 
