Rather than appearing "en masse" as in satyr-plays, when satyrs appear in myths it is usually in the form of a single, famous character. The comic playwright Melanippides of Melos ( 480–430 BC) tells the story in his lost comedy "Marsyas" of how, after inventing the "aulos", the goddess Athena looked in the mirror while she was playing it. She saw how blowing into it puffed up her cheeks and made her look silly, so she threw the aulos away and cursed it so that whoever picked it up would meet an awful death. The aulos was picked up by the satyr Marsyas, who challenged Apollo to a musical contest. They both agreed beforehand that whoever won would be allowed to do whatever he wanted to the loser. Marsyas played the aulos and Apollo played the lyre. Apollo turned his lyre upside-down and played it. He asked Marsyas to do the same with his instrument. Since he could not, Apollo was deemed to victor. Apollo hung Marsyas from a pine tree and flayed him alive to punish him for his hubris in daring to challenge one of the gods. Later, this story became accepted as canonical and the Athenian sculptor Myron created a group of bronze sculptures based on it, which was installed before the western front of the Parthenon in around 440 BC. Surviving retellings of the legend are found in the "Library" of Pseudo-Apollodorus, Pausanias's "Guide to Greece", and the "Fabulae" of Pseudo-Hyginus.