video transcript

If Goliath had a drum set, it would probably be about this size. Weighing in at 1.5 tons or 3,000 pounds and nicknamed the Big Boom, it's not surprising that it would take four people to play. Visitors at this amusement park in Vienna got a first listen. Drummer Peter Lindsberger says keeping the rhythm with the rest of the group isn't easy. (SOUNDBITE) Peter Lindsberger, drummer, saying (English): "You have to feel the beat in your heart. And you have to communicate because you don't see each other. It's very...much practice. We have to practice a lot." Measuring 6.5 meters in height, or 20 feet and eight meters wide - the sheer size of it makes it the largest drum set in the world. Kilmeny Duchardt, Reuters.