This guy doesn't miss a beat!

Someone filmed video of a man perfectly air-drumming along to Rush at the Baltimore Ravens season opener against the Buffalo Bills this past weekend.

The song playing in the stadium is Rush's "Tom Sawyer," to which the gentleman -- despite the driving rains -- perfectly air drums along, apparently completely unaware he's being watched.

Apparently, the man is a member of the Ravens' marching band; no wonder he's got so much rhythm!