cursors and songs

okay im sorry for asking stupid questions the entire time but ive literally never coded anything other than maybe my tumblr before (if you can call that coding)

anyways my friends and i are setting up our spaceheys rn and does anyone know how to change the cursor to something custom? is there any specific code?

and is it possible to add a song to the profile? yk maybe that when you click on the profile that it starts playing or something i have literally no idea