Beowulf: The Monsters and the Critics give it a powerful effect. He rebuts suggestions that the poem is an epic or exciting narrative, likening it instead to a strong masonry structure built of blocks that fit together. He points out that the poem's theme is a serious one, mortality, and that the poem is in two parts: the first on Beowulf as a young man, defeating Grendel and his mother; the second on Beowulf in old age, going to his death fighting the dragon. The work has been praised by critics including the poet and "Beowulf" translator Seamus Heaney. Michael D. C. Drout called it the
Old English literature "Beowulf", the sea is called the "whale road") and litotes, a dramatic understatement employed by the author for ironic effect. Alternative theories have been proposed, such as the theory of John C. Pope (1942), which uses musical notation to track the verse patterns. J. R. R. Tolkien describes and illustrates many of the features of Old English poetry in his 1940 essay "On Translating "Beowulf"". Even though all extant Old English poetry is written and literate, it is assumed that Old English poetry was an oral craft that was performed by a "scop" and accompanied by a harp. Most Old