The piano duo of Eva-Maria Zimmermann and Keisuke Nakagoshi, who perform as Zofo, boast a wonderful combination of turbulent energy and keen precision, in a musical arena that calls for both qualities. The program brings the West Coast premiere of Akira Nishimura’s “Samudra Manthan (The Churning of the Ocean Milk),” a large piece based on a Hindu myth about drinking from the ocean. [...] the performers head into outer space for Holst’s orchestral showpiece “The Planets,” in Nakagoshi’s arrangement for piano duet.