Poetry competitions like slams and rap contests may seem a fairly new cultural phenomenon, but when Eddie Rosa and his group present the décima, they will be celebrating an ancient poetic form and a type of friendly poetry competition that has been enjoyed throughout Latin America for centuries. What began as a literary tradition in 11th c. Spain became a musical tradition in the New World, where the décima is performed either a cappella or with instruments, and even the audience can get into the act. Admission free.