A composer with this first name had his Jamaican Rumba and Storm Clouds Cantata included in Alfred Hitchcock's The Man Who Knew Too Much. The Royal Ballet regularly performed Checkmate by a composer with this first name (15[1])known for his A Colour Symphony. The Irish Symphony is an orchestral work by a composer with this first name whose songs include “The Lost Chord” and “Onward, Christian Soldiers.” This first name (15[1])of composers surnamed Benjamin and (*) Bliss is shared by a composer who nicknamed his third symphony Liturgique and wrote a “mathematical acceleration of rhythm” inspired by a steam locomotive. That Swiss member of (-5[1])Les Six with this first name wrote Pacific (-5[1])231. For 10 points, give this first name shared by a composer surnamed Honegger and W. S. Gilbert’s collaborator on The Pirates of Penzance. ■END■ (10[2])