30 melodies. 30 melodies or fragments of melodies come down to us A couple are passed down through the medieval tradition Five are preserved on stone inscriptions The rest, however, survive on the waste paper of antiquity -- papyrus. Musical Papirus.
P. Yale CtYBR inv. 4510
the sort of musical notation sometimes used
by professional singers in antiquity
P. Mich. 1205r,