Delaunay had different things to say about his art at different times, as most artists do. In those early years, he spoke of “simultaneity,” which became synonymous with Orphism. By that ...

Harmony and Dissonance: Orphism in Paris, 1910-1930 Solomon R. Guggenheim Museum, through March 9 Mr. Esplund, the author of “The Art of Looking: How to Read Modern and Contemporary Art ...