Of the Hypolydian mood they make Polymnestus the inventor, and the first that taught the lowering and raising of the voice [hlvaig and tx^ol/j). To the same Olympus to whom they also ascribe the first invention of Grecian and well-riegulated nomic music they attribute likewise the finding out the enharmonic music, the prosodiac measure to which is composed the hymn to Mars, and the chorean measure which he used in the hymns to the Mother of the Gods. Some report him to be the author also of the bacchius. And every one of the ancient songs show that this is so. But Lasus of Hermione, transferring the rhythms to suit the dithyrambic time, and making use of an instrument with many notes, made an absolute innovation upon the ancient music, by the use of more notes, and those more widely distributed.