Oedipus the total absence of ancient descriptions or résumés – though it has been suggested that a part of Hyginus' narration of the Oedipus myth might in fact derive from Euripides' play. Some echoes of the Euripidean Oedipus have been traced also in a scene of Seneca's Oedipus (see below), in which Oedipus himself describes to Jocasta his adventure with the Sphinx. At least three other 5th century BC authors who were younger than Sophocles wrote plays about Oedipus. These include Achaeus of Eretria, Nichomachus and the elder Xenocles. The "Bibliotheca", a Roman-era mythological handbook, includes a riddle for the Sphinx,
Use of costume in Athenian tragedy hair. Attempts have been made in modern times to investigate the use of masks in Athenian tragedy through practice research. These explorations conclude that masks may lead to a more demonstrative style of acting, with declamatory delivery of the lines substituted for intimacy. They also found that the mask could impede the projection of sound. The Greeks are said to have overcome this in various ways. Initially, the mouth apertures were small, but later this became a “wide-open” mouth. Some authors believe that the mouth was shaped like a “mouth-trumpet” and had an amplifying effect. Certainly, the use of a