AmPm TV Commercial, 'Fountain Drinks: Beethoven's 5th Symphony'

In this commercial two guys are filling up their fountain drinks and start playing around with the buttons. They start playing Beethoven's 5th symphony with the buttons. When they are almost to the end, a man dressed as Beethoven holding a large ampm cup burps in their faces and stares at them. Now, any customer can mix and match fountain, frozen, or coffee drinks. Buy three and the fourth is free.