Decking "Waving Flags" in little more than the cheap rags of random video montage, the first offering from British Sea Power’s forthcoming Do You Like Rock Music? certainly isn't the most concise piece of art to cross our path.  There is Yan, stalking the camera in slow motion. There is also Yan, recording something in a dingy basement. There is even Ursine Ultra a ten foot bear usually only spotted at BSP shows-whom we presume is being played by Yan. But other than some additional scenic shots of Fort Tregantle, and a few other flag waving band members, that's about it-though we're certainly sold on the stratosphering anthem that is "Waving Flags".