Any tune available, set to loop only once (in case your visitors get fed up with it.)
Background wallpapers can be "fixed" so they do not go up and down with the text. Or they can move with the text. Hundreds are available, here are a few.
|White Mottled||Linen||Brown Paper|
|Blue Mottled||Sandy Beach||White Leather|
|Cream Linen||Builders Sand||Parchment|