In this video, Gregory Nagy, Douglas Frame, Leonard Muellner, and Keith Stone have an informal discussion about the role of dialects in the Homeric poetic tradition, introducing the Mycenaean phase, and Homeric forms in Arcadia. They include examples from formulas such as epithets within Homeric poetry, and also refer to the work of Aristotle and Theophrastus.
You can watch in the frame below, or on the CHS YouTube channel here.
Related: Greek dialects in epic: the cake of Homeric poetry