"I have often been asked the question why I have never before now written a work in the larger operatic form, and my answer has always been that I was waiting until I could find a really good book. For an opera libretto that successfully meets the requirements of a lyric work of this class, which is primarily for and of the stage, in the way of dramatic interest, development and climax, a poetic knowledge of the possibilities and limitations of the English language when sung, and those visual and picturesque qualities in the story which alone can make the unreal conditions of opera, per se, either plausible or intelligible, is about as rare as the proverbial white crow—as many gifted composers have found to their cost.
"All these requirements are, I think, fulfilled in the really charming libretto which Mr. Mackaye has written in 'The Canterbury Pilgrims,' which came to me unsought as it were. As a member of a committee for choosing plays to be used in settlement work on the East Side, my wife read Mr. Mackaye's earlier play of the same name, and told me she thought it contained excellent operatic material. Agreeing with her, I went to Mr. Mackaye and suggested the idea to him. He agreed with me and soon afterwards, early in 1914, we set to work. To adapt a play of over 17,000 words for operatic purposes by merely cutting it was manifestly impossible. Entire reconstruction, both in structure and language, was necessary, and this Mr. Mackaye has so successfully accomplished that in my judgment his libretto, as an artistic whole, is far superior to his earlier play.
"I took the first act with me when I went abroad in March, 1914, and the entire opera, begun October 10, 1914, was finished on December 21, 1915, during which time I lived at Vevey, Switzerland, amid, and yet far from, wars and rumours of wars.
"As to my part of the work, the characters of Mr. Mackaye's story, whose essentially old English atmosphere appealed to me strongly from the first, naturally suggested Verdi's 'Falstaff' as a model in a sense. But Verdi abjured the leit motif or motto theme, and I had always felt that Wagner's theory, applied in some form, was the true basis of construction for all musico-dramatic work. Yet again it always seemed to me that, save in the hands of a consummate master, the leit motif, pushed to its logical development, was only too apt to become tiresome, obscure, and ineffective. So, after much consideration, I bethought me of the very way in which Massenet in 'Manon' had used a limited number of what might be called recurrent themes—such as the one for 'Des Grieux'—and made up my mind to try what could be done along these simpler and more plastic lines.
"So, without attempting to describe pictorially in music, swords, tarnhelms, or dragons, or to weave music into an intricate contrapuntal work, I have in 'The Canterbury Pilgrims,' while following closely the spirit and meaning of Mr. Mackaye's poetic text, attributed a number of saliently melodic themes to the characters, incidents, and even material objects of the story, and when these recur in or are suggested by the text the attributive themes recur with them, so that, as I hope, they may be readily recognizable by the untechnical opera-goer and aid him in following this story and action.
"Just a word in regard to the English language as a medium for opera and song. As Mr. Gatti says that a typical operatic audience in Italy, knowing their own language and generally familiar with both text and story of their operas, only expect to understand about half the words as sung, owing to the very conditions of opera itself, may it not be fairly said that American audiences who go to hear operas in English, expecting to understand every word, expect the impossible, and should be more reasonable in their demands?
"Again, I have always contended and maintained that the English language, properly used, is an entirely singable language, and as so far during the rehearsals of 'The Canterbury Pilgrims' none of the artists has seemed to find any great difficulty in singing in English beyond that inherent to a certain lack of familiarity with the language itself, it looks as if my contention stands at least a fair chance of being admitted."