Complex sentence: The "Requiem" op.144b of Max Reger, also called "Hebbel Requiem", is a setting of Friedrich Hebbel's poem of the same title, composed in 1915 for alto (or baritone) solo, chorus and orchestra.
Split into simpler sentences: The "Requiem" op.144b of Max Reger, also called "Hebbel Requiem", is a composition of Friedrich Hebbel's poem "Requiem". Reger wrote it in 1915 for alto (or baritone) solo, chorus and orchestra.