If you buy this piano, you can change the music by adding animated sheet music that includes sounds. Sheet music can be added as many times as it is sold in the catty, which will give you different tunes to play - just by changing the sheet music which will snap into place on the piano. This particular piano was created to play the bridal march at weddings. The pre-installed trigger is march. The song installed to play is a purchased royalty free song and it is called: The Wedding March (piano slow soul) . Although you can play the piano without purchasing the sheet music, the product ID for the sheet music is: 27144027 and called Wedding March2 for Piano w/Book by MsCocoXTC.