The ancient Egyptian goddess Isis wept for her beloved husband Osiris, who was murdered and betrayed by his own brother. Her tears brought about the annual flood and inundation of the Nile. This music depicts the calling of Isis by the temple priests sounding the primordial conch shell. Then a soloist playing a 16 string lyre, here performed on the north African nyatiti, makes an offering to Isis that assures the joy of all the people in anticipation of the arrival of Isis in the guise of the Nile Star. Following this a group of wooden flute players, who have gathered by the banks of the lower Nile delta, play antiphonal melodies thought to be favored by Isis herself. Finally, when the watching priests see arrival of Isis and the rain begins to fall, they once again sound the conch shells in homage to Isis.