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[ It is worthy of note how certain intellectual currents, running through an age, take simultaneous effect in different spheres. The tendency to individuality in art, to truth and nature, which was due to the encyclopedists, made itself manifest side by side with the principle of simple beauty which Winckelmann laid down as characteristic of ancient art.]

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[ Planelli, Dell' Opera in Musica (Neap., 1772), p. 148, approves of Gluck's principles, and the latter praises Planelli's performance of "Alceste"; Vine. Manfredini (Regole Arm., p. 163) takes much exception to it.]

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[ Schelle has (N. Ztschr. f. Mus., LIX., p. 42) published Calsabigi's letter (Mercure de France, Aug. 21,1784), in which the latter, who considered himself neglected, represents his relations with Gluck.]

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[ Mém. pour servir ä l'Hist. de la révolution opérée dans la Musique par Gluck, p. 8.]

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[ Calsabigi retracted his opinion on the opera in the letter prefixed to his "Elfrida" in 1794. At that time he believed in Paesiello as the true philosophical composer.]