Willi Apel, Lemma dal titolo "Music and Freemasonry", in The Harvard Dictionary of Music, a cura di Don Michael Randel, Harvard University Press reference library, Harvard University Press, 28 novembre 2003, pp. 333-334, ISBN9780674011632, OCLC59288640. URL consultato il 14 settembre 2019.. Citazione: [...] Mozart's Magic flute (Vienna, 1791). The last uses a libretto written by Mozart's lodge brother Emmanuel Schikaneder and dramatizing in allegory the rite and philosophy of masonic initiation; the music embodies masonic symbolism in its principal key of three flats, prominent orchestration for winds, and recurring motif of three repeating chords.
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Willi Apel, Lemma dal titolo "Music and Freemasonry", in The Harvard Dictionary of Music, a cura di Don Michael Randel, Harvard University Press reference library, Harvard University Press, 28 novembre 2003, pp. 333-334, ISBN9780674011632, OCLC59288640. URL consultato il 14 settembre 2019.. Citazione: [...] Mozart's Magic flute (Vienna, 1791). The last uses a libretto written by Mozart's lodge brother Emmanuel Schikaneder and dramatizing in allegory the rite and philosophy of masonic initiation; the music embodies masonic symbolism in its principal key of three flats, prominent orchestration for winds, and recurring motif of three repeating chords.
