 For Duff , who stated that the song can be interpreted in many different ways , " Beat of My Heart " tells the story of a heterosexual relationship , in which the woman was in love with the man , but he was not " as into her as she was him " . After the couple break @-@ up , she found herself in a place where she " wasn 't herself " . She then " comes out of her shell again " , which Duff described as : " Coming out again , dancing again , smiling again , having fun and seeing everything in a brighter light . " The Dead Executives were instrumental in the instrumentation of " Beat of My Heart " , performing on the bass and guitars . They also mixed and engineered the song ; the latter was also conducted by Todd Parker and Grant Conway and assisted by Allan Hessler . It was mixed and recorded at the Foxy Studio in Los Angeles , California . The drums featured on the track was performed by Dean Butterworth while Monique Powell and The Fruit performed backing vocals . The song was then mastered by Joe <unk> . 
