the reason because it is short is because the ending took a really long time to perfect.there are 3 songs. One for the main menu,one for the heist and one for the runner.By the way,dont try doing my type of background when running because it takes ages and the running animation is extremely hard to perfect. Unfortunately,the running scene was amazing with live n learn but it was too big so the running scene has no music now and nor has the main menu. : (