Trust Jacaranda, that intrepid group of world-class visionaries, to present a truly exciting eight-plus hours of music. Divided into three concerts, the blowout pays homage to our greatest contemporary composers. Program 1 features works by Copland, Ives, Ginastera, Varèse, Golijov and Roldan. Pause for a dinner break hosted by Border Grill and Ciudad, and then dive into Program 2, which includes works by Revueltas, Varèse, Ginastera and Harrison, along with two John Adams favorites: Shaker Loops and that death-defying solo piano feat Phrygian Gates, performed by — who else? — Gloria Cheng. Take a dessert-and-coffee “breather” and settle in for the finale, a retrospective of new-music classics that includes Steve Reich’s Clapping Music, John Cage’s Wonderful Widow of 18 Springs and Terry Riley’s In C. Barnum Hall, Santa Monica High School, 601 Pico Blvd., Santa Monica; Sat., Nov. 4, 4 p.m.-mid.; $60 all three concerts, $25 students; $25 individual concerts, $10 students. (310) 451-1303 or www.jacarandamusic.org.