Found the following article online, use it to answer the question: What opera was performed at Queen's Hall in 1910?  As a composer Holst was frequently inspired by literature. He set poetry by Thomas Hardy and Robert Bridges and, a particular influence, Walt Whitman, whose words he set in "Dirge for Two Veterans" and The Mystic Trumpeter (1904). He wrote an orchestral Walt Whitman Overture in 1899. While on tour with the Carl Rosa company Holst had read some of Max Müller's books, which inspired in him a keen interest in Sanskrit texts, particularly the Rig Veda hymns. He found the existing English versions of the texts unconvincing, and decided to make his own translations, despite his lack of skills as a linguist. He enrolled in 1909 at University College, London, to study the language.Imogen commented on his translations: "He was not a poet, and there are occasions when his verses seem naïve. But they never sound vague or slovenly, for he had set himself the task of finding words that would be 'clear and dignified' and that would 'lead the listener into another world'". His settings of translations of Sanskrit texts included Sita (1899–1906), a three-act opera based on an episode in the Ramayana (which he eventually entered for a competition for English opera set by the Milan music publisher Tito Ricordi); Savitri (1908), a chamber opera based on a tale from the Mahabharata; four groups of Hymns from the Rig Veda (1908–14); and two texts originally by Kālidāsa: Two Eastern Pictures (1909–10) and The Cloud Messenger (1913).Towards the end of the nineteenth century, British musical circles had experienced a new interest in national folk music. Some composers, such as Sullivan and Elgar, remained indifferent, but Parry, Stanford, Stainer and Alexander Mackenzie were founding members of the Folk-Song Society. Parry considered that by recovering English folk song, English composers would find an authentic national voice; he commented, "in true folk-songs there is no sham, no got-up glitter, and no vulgarity". Vaughan Williams was an early and enthusiastic convert to this cause, going round the English countryside collecting...
A:
The Somerset Rhapsody