The mark is a sound. The mark consists of THE MARK COMPRISES A SEQUENCE OF JUSTLY TUNED CHIME-LIKE MUSICAL NOTES IN A444.444 ? PITCH STANDARD. THE SEQUENCE OF NOTES, WHICH ARE IN THE KEY OF C ARE G, E, C. THE "G" BEING 200 HERTZ, A JUST PERFECT FOURTH INTERVAL BELOW ?MIDDLE C.? THE "E" BEING 333.333 ? HERTZ, A JUST MAJOR THIRD INTERVAL ABOVE ?MIDDLE C.? THE "C" BEING ?MIDDLE C,? 266.666 ? HERTZ, A JUST MAJOR SIXTH INTERVAL BELOW ?CONCERT A?. ?CONCERT A? BEING 444.444 ? HERTZ. .