Press the green flag and listen, the music loops by itself. Try clicking on the screen, maybe if you do it a lot you will break the backdrop? If you press space and click it will repair t he screen.
Images from: www.irish-folk-songs.com www.true-piano-lessons.com Helped me find out and make the notes for this song. Also, credit to original maker of song and/or owners. Particle effects idea taken from TM_'s graphics tutorial. All code made by me, not dragged from other Scratchers' projects.