"Trombone Tremor - Donkey Kong 64" is a high quality rip of "Trombone Tremor" from Donkey Kong 64.
The rip plays a poorly-played cover of the advertised track. Later, near the end of the rip, the person, that was playing the trombone, imitates an explosion.
The rip was originally called "Trombone Tremor! - Donkey Kong 64", with an exclamation point.