Musical pictures abound in this imaginative program, led by Music Director Ken-David Masur, which begins with Rossini’s galloping William Tell overture and Richard Strauss’s tone poem delighting in the pranks of a jokester named Till Eulenspiegel. An ácana is a distinctive Cuban tree revered for its strength, which composer Tania León brings to life with color, texture, and percussion; León’s rainforest is an effervescent introduction to Resphigi’s stately yet evocative Pines of Rome.