The mysticism and poetical charm of Zola's book, so different to the majority of novels by the apostle of realism, has caused it to be widely appreciated even in circles where his romances are not usually admitted. Bruneau's desire originally had been to write a "lyrical drama" upon "La Faute de l'abbé Mouret." It was only when he found that Massenet had chosen the same subject that he was forced to give up the idea and turn his attention to "Le Rêve." I am not aware whether Massenet has abandoned his intention of turning "La Faute de l'abbé Mouret" into an opera or not. Now that composers appear bent upon introducing realism into their music, it is not impossible that even "L'Assommoir" may eventually serve as the groundwork of an operatic textbook. We trust that this will not be so. However realistic musicians may strive to be, they should not associate their muse with themes that are not susceptible of being idealised. [Illustration: FACSIMILE OF AUTOGRAPH SCORE OF "LE RÊVE" _Act I._] The desire nowadays of musically photographing, if I may employ a somewhat far-fetched comparison, certain types of humanity is excellent in its way. But it is as well in so doing to choose a period remote from ours, where no sense of incongruity can be produced through the appearance of operatic characters clad in the prosaic garb of the present day. The general characteristics of humanity have always been the same, and Wagner, with his marvellous poetical insight, knew well what he was about when he drew the subjects of his "music dramas" from mythical sources. In "Le Rêve" Bruneau has written a work remarkable in point of originality and sustained expression. His music must be either accepted in its entirety or rejected altogether. Upon those who appreciate its beauties it exercises an irresistible fascination. Bruneau is a psychologist, and he aims at musically describing the innermost feelings of the soul. He has also in "Le Rêve" proved himself to be an idealist. I will in a few words endeavour to sketch the subject-matter of this admirable work.