Improvised verses and verbal jousting echo through a Cuban theater where young people regularly gather to uphold "repentismo," a traditional form of poetic improvisation that stands strong against the omnipresence of reggaeton. "A well-crafted tenth is a wonderful artistic creation, not the obscene words, the barbarities that today's reggaeton singers say," says 17-year-old poet Brayan Gutierrez. IMAGES AND SOUNDBITES