Ein Sommernachtstraum is the incidental music to Shakespeare's A Midsummer Night's Dream by German composer Felix Mendelssohn, composed in 1842. The score uses light, transparent orchestration, clear melodic writing and agile rhythmic figures to evoke the play's fairy-world and comic episodes, and it occupies a notable place in Mendelssohn's output as a work that expands his early overture material into a larger theatrical score.