not sure which part you consider the first part so heres the first 3 0:01 Petscop 0:37 If I Am With You (from JJK) 1:00 Artifactual Recollection (phighting ost)
0:01 Petscop 0:37 If I Am With You (from JJK) 1:00 Artifactual Recollection (phighting ost) 5:15 Rhubarb by Aphex Twin 9:28 True Arena (Arranged) (by aden mayo) everything else is reused music from a different time in the video or music from the game itself