a.k.a Friendship is Musical theme.
Download MIDI: https://drive.google.com/file/d/1RnCMankvC7R6_Xa_O8seKmDooR-wR3iS/view?usp=sharing

For sheet music, just open the MIDI w/ Sibelius, MuseScore, Finale, etc. or play it w/ Synthesia Piano, PianoVision VR, etc.

Original: Andrew W.K. - Ready to Die
https://www.youtube.com/watch?v=Tlu1ZfYr6vA