Marin Alsop collects conducting jobs the way our grandmothers collected charms for their charm bracelets. Her Web site lists current top posts with the ORF Vienna Radio Symphony, the Polish National Radio Symphony, the Philharmonia Orchestra in London, the Philadelphia Orchestra, the Ravinia Festival, and the National Orchestral Institute + Festival (NOI+F) at the University of Maryland, not to forget her February breakthrough as the first U.S.-born woman to lead the Berlin Philharmonic. Digging deeper into her résumé, you’ll spot her seven-year tenure as music director of the São Paulo Symphony Orchestra, in Brazil, where she retains the title of Conductor of Honor. Thus, when Alsop programs “Music of the Americas,” she ain’t whistling Dixie. From Mexico, Alsop brings us Antrópolis, by Gabriela Ortiz, a lively 10-minute sampler of nightclub and dancehall sounds. From Venezuela, it’s Gabriela Montero’s infectious half-hour “Latin” Piano Concerto No. 1, with the double-threat composer herself at the keyboard. From north of the Río Grande, we’ll hear Aaron Copland’s Fanfare for the Common Man paired with Joan Tower’s Fanfare for the Uncommon Woman (adding up to a big six minutes), and finally Samuel Barber’s Symphony No. 1, written during his residency at the American Academy in Rome as recipient of the Rome Prize. Though laid out along classical lines, in four movements, the treatment of motifs that morph from movement to movement leaves textbook procedures behind. Curiously, a passacaglia finale wraps up the piece with a show of Baroque gravitas. —Matthew Gurewitsch