Had it not been for classical music, and opera in particular, Walt Whitman's poetry would probably never have been written.
It sounds a ridiculously bold, even nonsensical claim to make, yet Whitman himself appeared to make it.
"But for opera I would never have written 'Leaves of Grass,' " he once said, referring to the seminal collection that sealed his reputation as a great American poet.
The precise nature of Whitman's relationship to classical music is examined at the Source Song Festival in Minneapolis this week, in a Walt Whitman Wednesday marking the 200th anniversary of the poet's birth.
The influence of music on Whitman's poetry goes deep, said Ed Folsom, co-director of the online Walt Whitman Archive, who will give the keynote lecture at the all-day event.
"There's a long history of Whitman talking about his own poetry as being very much operatic," Folsom said. "Critics have seen in his poetry a kind of continual interplay between something you might think of as recitative, and something you might think of as aria."
Recitative and aria are the basic building blocks of 19th-century opera, and involve characters first singing in a manner close to normal speech, then switching to a more intensified style of expression. That template directly affected the way Whitman shaped his own poetry.
"He moves between a roughly prosaic poetic line to moments of soaring beauty that become the aria," Folsom said. "Poems like 'Out of the Cradle Endlessly Rocking' or 'When Lilacs Last in the Dooryard Bloom'd' very easily yield to that kind of formal analysis."