How to play this song ?

These are single notes, not chords.
Each note must be played individually.

There are different notations, like, A B C , DO RE MI , Sa Re Ga and numeric notation 1 2 3.
Choose one that fits better for you.

You can distinguish the octave by the color of the note and if it is UPPERCASE (high pitch) or lowercase (low pitch). Enjoy

Chained To The Rhythm

Katy Perry Pop

"Chained To The Rhythm" is a song by American singer Katy Perry. It was released on February 10, 2017, as the lead single from her fifth studio album, "Witness." The song was written by Katy Perry, Max Martin, Ali Payami, and Sia, with production handled by Max Martin and Ali Payami. "Chained To The Rhythm" became a commercial success, reaching the top five in multiple countries. The song carries a disco-inspired melody with catchy synth-driven beats and thought-provoking lyrics discussing the monotony and conformity of modern society.