 In Payne's view, the "Sketches" are the high water mark of Delius's compositional skill, although Fenby awards the accolade to the later "Eventyr (Once Upon a Time)" (1917).During this period Delius did not confine himself to purely orchestral works; he produced his final opera, "Fennimore and Gerda" (1908–10), like "A Village Romeo and Juliet" written in tableau form, but in his mature style.His choral works of the period, notably "An Arabesque" (1911) and "A Song of the High Hills" (1911) are among the most radical of Delius's writings in their juxtapositions of unrelated chords.