You have conceived my meaning perfectly; and if I mistake not, what you failed to apprehend before is now made clear to you, that poetry and mythology are, in some cases, wholly imitative-- instances of this are supplied by tragedy and comedy; there is likewise the opposite style, in which the my poet is the only speaker-- of this the 
dithyramb affords the best example; and the combination of both is found in epic, and in several other styles of poetry.
The same thing holds good of 
Dithyrambs and Nomes; here too one may portray different types, as Timotheus and Philoxenus differed in representing their Cyclopes.
Casaubon that evening, or on his 
dithyrambs about Dorothea's charm, in all which Will joined, but with a difference.
Kushner's modest memories and Sobchak's 
dithyramb define two extremes, toward one or the other of which almost all Petersburgian tributes over the summer tended: either the unwieldy magnitude of the marble, burdened further by its very Roman bas-relief of Brodsky's silhouette, or the memories of childhood friends; either what he has become, posthumously, or what he used to be.
In his play The 
Dithyramb of the Rose (1932), as well as in his other Messianic plays, including Sibyl (1940), Daedalus in Crete (1943), and Christ in Rome (1946), Sikelianos constructs an alternative reality with its own dynamics and ontological imperatives, while Kazantzakis pits his heroes against the fundamental realities of the human condition.
The 
dithyramb began to achieve literary distinction about 600 BC, when the poet Arion composed works of this type, gave them names, and formally presented them at the Great Dionysia competitions at Corinth.
His earlier problems with craft solved, I suspect the encouragement came from the 
dithyramb of voices, fictional and factual, that he continued to hear around him (he pays homage in the beginning of "Memorial" to "The Things They Carried").
Satyr plays are believed to have developed from the 
dithyramb, a hymn to Dionysus, concurrently with tragedy.