Homeric Hymns
Another parallel is the myth of Dionysus and the sailors, related in the Homeric Hymns: Tyrrhenian pirates try to lash the god to the mast, but the wood itself starts to sprout and the mast is entwined with ivy (like the god's thyrsus); the sailors leap into the sea and are transformed into dolphins. This is especially interesting because Arion is credited with the invention of the dithyramb, a dionysiac song.