Just click the picture in the center to start playing all songs in order. If you want to listen to songs individually, just click on the button to the left of the song's label. If you want it to stop, just click the red button. Don't click on multiple buttons at once, as that will cause both/multiple songs to play at once.
So this took me forever as it refused to save and kept deleting, and I spent almost three hours just remaking the coding over and over again *cries* Thanks @JustALilCrazy for the inspo and help coding! All songs belong to Ado, not me