With a light flick of the conductor’s baton and a unified breath from each member, the band started playing the two deep and ominous notes easily recognized as the theme of “Jaws.” The sounds echoed off the walls of the acoustics chamber at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
Click here for original story, Pace off: NASA Goddard acoustics chamber and US marine band turn up the volume
Source: Phys.org