Debussy furnished a programme for the suite; at least, this programme is attributed to him. Some who are not wholly in sympathy with what they loosely call “the modern movement” may think that the programme itself needs elucidation. Debussy’s peculiar forms of expression in prose are not easily Englished, and it is well-nigh impossible to reproduce certain shades of meaning.
“The title Nocturnes is intended to have here a more general and, above all, a more decorative meaning. We, then, are not concerned with the form of the Nocturne, but with everything that this word includes in the way of diversified impression and special lights.
“Clouds: the unchangeable appearance of the sky, with the slow and solemn march of clouds dissolving in a gray agony tinted with white.
“Festivals: movement, rhythm dancing in the atmosphere, with bursts of brusque light. There is also the episode of a procession (a dazzling and wholly idealistic vision) passing through the festival and blended with it; but the main idea and substance obstinately remain—always the festival and its blended music—luminous dust participating in the universal rhythm of all things.
“Sirens: the sea and its innumerable rhythm; then amid the billows silvered by the moon the mysterious song of the Sirens is heard; it laughs and passes.”
Alfred Bruneau with regard to the Nocturnes: “Here, with the aid of a magic orchestra, he has lent to clouds traversing the sombre sky the various forms created by his imagination; he has set to running and dancing the chimerical beings perceived by him in the silvery dust scintillating in the moonbeams; he has changed the white foam of the restless sea into tuneful sirens.”
Questioning the precise nature of the form that shapes these Nocturnes, the reader may well ponder the saying of Plotinus in his “Essay on the Beautiful”: “But the simple beauty of color arises, when light, which is something incorporeal, and reason and form, entering the obscure involutions of matter, irradiates and forms its dark and formless nature. It is on this account that fire surpasses other bodies in beauty, because, compared with the other elements, it obtains the order of form: for it is more eminent than the rest, and is the most subtle of all, bordering as it were on an incorporeal nature.”
The Nocturnes are scored as follows:
I. Two flutes, two oboes, English horn, two clarinets, three bassoons, four horns, kettledrums, harp, strings. The movement begins modéré, 6-4.
II. Three flutes, two oboes, English horn, two clarinets, three bassoons, four horns, three trumpets, three trombones, bass tuba, two harps, kettledrums, cymbals, and snare drum, strings. Animé et très rhythmé, 4-4.