California’s Pacific Symphony will open its 2020-21 season with the world premiere of Wayne Oquin’s Tower Ascending, plus Tchaikovsky’s Symphony No. 5 and Mozart’s Piano Concerto No. 10 for Two Pianos, with soloists Christina and Michelle Naughton, led by Music Director Carl St.Clair. The world premiere of James MacMillan’s Fiat Lux will be performed on a program with Strauss’s tone poem Death and Transfiguration and Tallis’s 40-voice motet Spem in Alium featuring the Pacific Chorale. Also planned are a semi-staging of Verdi’s Rigoletto, with artists and creative team to be announced; “the Mozart Project,” a three-day collaboration with South Coast Repertory and Pacific Chorale; and Scriabin’s Poem of Ecstasy. In addition to core repertoire, the orchestra will perform Michael Daugherty’s Route 66, Chris Brubeck’s Pas de Deux, Andrew Norman’s Sacred Geometry, Jean-Féry Rebel’s “Le chaos” from Les élémens, Michael Ippolito’s Nocturne for orchestra, Lili Boulanger’s D’un matin de printemps, and Wojciech Kilar’s Orawa for string orchestra.