The song sung by the dinosaur is stored in the variable list "Song" Each note is defined by a pitch (C, D, E, etc, and also notes like Eb, Gb, for flatted notes), the duration is defined by values such as 8, 8d, 4, etc, with the d indicating a dotted note. If you need to jump an octave, put the number 1 after the duration. So "Bb,2,1" would be a B-flat half-note, up an octave. Change the values in the "Song" variable to make your own tunes!