[67] See the excellent essay of H. Lavoix, in his Histoire de l'Instrumentation. It should be noticed that Berlioz's observations in his Traité d'instrumentation et d'orchestration modernes (1844) have not been lost upon Richard Strauss, who has just published a German edition of the work, and some of whose most famous orchestral effects are realisations of Berlioz's ideas.
[68] One may judge of this instinct by one fact: he wrote the overtures of Les Francs-Juges and Waverley without really knowing if it were possible to play them. "I was so ignorant," he says, "of the mechanism of certain instruments, that after having written the solo in D flat for the trombone in the Introduction of Les Francs-Juges, I feared it would be terribly difficult to play. So I went, very anxious, to one of the trombonists of the Opera orchestra. He looked at the passage and reassured me. 'The key of D flat is,' he said, 'one of the pleasantest for that instrument; and you can count on a splendid effect for that passage'" (Mémoires, I, 63).
[69] Mémoires, I, 64.
[70] "Berlioz displayed, in calculating the properties of mechanism, a really astounding scientific knowledge. If the inventors of our modern industrial machinery are to be considered benefactors of humanity to-day, Berlioz deserves to be considered as the true saviour of the musical world; for, thanks to him, musicians can produce surprising effects in music by the varied use of simple mechanical means.... Berlioz lies hopelessly buried beneath the ruins of his own contrivances" (Oper und Drama, 1851).
[71] Letter from Berlioz to Ferrand.
[72] "The chief characteristics of my music are passionate expression, inward warmth, rhythmic in pulses, and unforeseen effects. When I speak of passionate expression, I mean an expression that desperately strives to reproduce the inward feeling of its subject, even when the theme is contrary to passion, and deals with gentle emotions or the deepest calm. It is this kind of expression that may be found in L'Enfance du Christ, and, above all, in the scene of Le Ciel in the Damnation de Faust and in the Sanctus of the Requiem" (Mémoires, II, 361).
[73] "So you are in the midst of melting glaciers in your Niebelungen! To be writing in the presence of Nature herself must be splendid. It is an enjoyment which I am denied. Beautiful landscapes, lofty peaks, or great stretches of sea, absorb me instead of evoking ideas in me. I feel, but I cannot express what I feel. I can only paint the moon when I see its reflection in the bottom of a well" (Berlioz to Wagner, 10 September, 1855).
[74] Musikführer, 29 November, 1903.
[75] Mémoires, II, 361.
[76] M. Jean Marnold has remarked this genius for monody in Berlioz in his article on Hector Berlioz, musicien (Mercure de France, 15 January, and 1 February, 1905).