There is a recognizable rhythm throughout the song but it changes throughout the song. Many percussion instruments were used in this song. Among these instruments used are the piano and the drums. The piano can also serve as a string instrument. Also includes a saxophone and guitar. There are percussion instruments used in Bad Blood. There is a drum and a synthetic piano. Blank Space is classified as program music because an extra musical idea is needed to analyze these songs. To fully understand the song, you need to know that she is commenting on the media's portrayal of her. The program is therefore her making fun of the stories that are told about her in the press. This is accomplished by incorporating into the song many of the things she hears said about her in the press. Bad Blood on the other hand would not classify as a strophic song despite there being an extra musically necessary to understand the song, but Bad Blood has a music video that expresses this musical extra