Claude Debussy's La Mer Watch Now Tuesday, July 9, 2013CWU Symphony Orchestra performs Debussy's La Mer. Your browser does not support the video tag. French composer Claude Debussy captures the essence of light, ocean waves and the passage of time in La Mer. CWU's Symphony Orchestra performs this Impressionist tone poem. Performance by CWU Wind Ensemble and graduate conducting student Dean Snavely, is Composer Timothy Broege's concerto, No Sun, No Shadow an Elegy for Charles Mingus.