Song from π!
Sheet music is avaliable here: http://www.sheetmusicplus.com/title/20044129
High quality recording here: https://www.youtube.com/watch?v=wM-x3pUcdeo
This is a song I wrote to help me memorize π, since I can memorize music easier than strings of numbers. In my mind, I can hear the melody, and figure out the numbers. I was originally inspired by reading a magazine article about musician Daniel Cumerrow. Check out his version and some other works of pi music here: http://www.pi314.net/eng/musique.php