But, let us not consider whether or not _Fin ch' han dal vino_ is improved by being sung (as tenor _Don Giovannis_ sometimes sing it) a fourth higher than it was written by Mozart; or whether it is tolerable that the concerted pieces in which _Don Giovanni_ takes part should be, not transposed (for that would be insufficient, or, rather, would increase the difficulties of execution) but so altered, that in some passages the original design of the composer is entirely perverted. Let us simply repeat the maxim, on which it is impossible to lay too much stress, that the work of a great master should not be touched, re-touched, or in any manner interfered with, under any pretext. There is, absolutely, no excuse for managers mutilating _Don Giovanni_; not even the excuse that in its original form this inexhaustible opera does not "draw." It has already lived, and with full, unfailing life, for three-quarters of a century. It has survived all sorts of revolutions in taste, and especially in musical taste. There are now no Emperors of Germany. Prague has become a third-rate city. That German Opera, which Mozart originated with his _Entführung aus dem Serail_, has attained a grand development, and among its composers has numbered Beethoven, Weber, and the latter's follower, and occasional imitator, Meyerbeer. Rossini has appeared with his seductive melody, and his brilliant, sonorous orchestra. But justice is still--more than ever--done to Mozart. The verdict of Prague is maintained; and this year, as ten, twenty, forty years ago, if the manager of the Italian Opera of London, Paris, or St. Petersburgh, has had for some time past a series of empty houses, he takes an opera, seventy-four years of age, and which, according to all ordinary musical calculations, ought long since to have had, at least, one act in the grave, dresses it badly, puts it badly on the stage, with such scenery as would be thought unworthy of Verdi, and hazardous for Meyerbeer, announces _Don Giovanni_, and every place in the theatre is taken! * * * * *