Obra: Sinfonía núm. 2, India

Artistic decisions may have been off the mark, but this young orchestra has an arresting predilection for the lush.

Maestro Gustavo Dudamel and the Simón Bolívar Symphony Orchestra of Venezuela completed a four-day residency at Cal Performances with two concerts that rocked, rolled, and astounded audiences in Berkeley’s Zellerbach Hall.

Composers have a long tradition of incorporating folk tunes into their music, and this evening’s concert by the National Youth Orchestra, with support from members of the folk group Bellowhead, really proved the point that musical genres are not separate boxes, but just points on a continuum, with no fixed boundaries.