The sistrum was, properly speaking, not considered a musical instrument at all. It was used only in religious ceremonies, and may be considered as the ancestor of the bell that is rung at the elevation of the Host in Roman Catholic churches. Herodotus (born 485 B.C.) tells us much about Egyptian music, how the great festival at Bubastis in honour of the Egyptian Diana (_Bast_ or _Pascht_), to whom the cat was sacred, was attended yearly by 700,000 people who came by water, the boats resounding with the clatter of castanets, the clapping of hands, and the soft tones of thousands of flutes. Again he tells us of music played during banquets, and speaks of a mournful song called _Maneros_. This, the oldest song of the Egyptians (dating back to the first dynasty), was symbolical of the passing away of life, and was sung in connection with that gruesome custom of bringing in, towards the end of a banquet, an effigy of a corpse to remind the guests that death is the birthright of all mankind, a custom which was adopted later by the Romans. Herodotus also gives us a vague but very suggestive glimpse of what may have been the genesis of Greek tragedy, for he was permitted to see a kind of nocturnal Egyptian passion play, in which evidently the tragedy of Osiris was enacted with ghastly realism. Osiris, who represents the light, is hunted by Set or Typhon, the god of darkness, and finally torn to pieces by the followers of Set, and buried beneath the waters of the lake; Horus, the son of Osiris, avenges his death by subduing Set, and Osiris appears again as the ruler of the shadowland of death. This strange tragedy took place at night, on the shore of the lake behind the great temple at Sais. Osiris was dressed royally, in white, and after the horrible pursuit and his murder by Set and his sinister band, Horus, the rising sun, dispels the gloom, and a glorious new god of light appears. Set and his followers are driven back to the gloomy temple where, perhaps, there was another scene showing the shade of Osiris, enthroned and ruling the dead. We have no means of knowing the character of the music which accompanied this mystery play; but certainly the deep tones of the harps and the flutes, together with the chanting of men's voices, must have been appropriate. Add to these the almost silent rattle of the sistrum, which, for the Egyptians, possessed something of the supernatural, and we have an orchestral colouring which is suggestive, to say the least.