Downloaded my redneptune's scratch music project and just sort of experimented..with images and other things.. The music is as the original project although it's been looped and you can alter its tempo by using the slider.. This can be adjusted before the music starts after you have clicked the screen or while the music is playing.. if downloaded you can hide the tempo slider after you have selected the tempo speed you prefer. (images used are just a selection of images I've created in various image editing applications) just click the screen to start and hit the red button to end.