Imagine a composition in which you hear a gnome, feel you are near a haunting castle, or hear cattle rumbling past pulling a heavy load. Classical music lovers have always been attracted to compositions with colorful or evocative titles, especially those that are associated with a story you can actually hear in the music. Such “program music” can be inspired by a play, like Tchaikovsky’s symphonic poem “Romeo and Juliet”; by the seasons of the year, like Vivaldi’s concertos “The Four Seasons”; by a poem, like Paul Dukas’s popular “The Sorcerer’s Apprentice” (after a poem by Goethe);  by elements of nature like bird calls and storms, as in Beethoven’s “Pastoral” (sixth) symphony; or even by paintings. Among the most popular and interesting of painting-inspired compositions and, indeed, one of the most popular of all classical compositions is “Pictures at an Exhibition” (1874) by Modest Mussorgsky (1839–1881). In a recent report …