It appears that 12-tone serialism is a dead end. However, "everything old becomes new again," and I would guess that after a hundred years or so neoclassicism at least will be revived. What seems to be happening more now, however, is a synthesis between European "classical music" and other world musics. One of the best examples is the recently deceased Alan Hovhaness, who by combining classical techniques with Japanese, Indian, Korean, and Middle Eastern influences has produced an impressive body of work.
As for LvB's music being mind-altering, I would say that all the best music is, from Carlo Gesualdo to Edgard Varese, from Bach's D minor Toccata and Fugue to The Rite of Spring. Beethoven's Ninth is only the most powerful example.
(BTW, it's not quite accurate to say that no one composed symphonies immediately after Beethoven. Schubert, Mendelssohn and Schumann each wrote symphonies, although of those only Schubert's Ninth comes close to matching Beethoven's power.)
As for LvB's music being mind-altering, I would say that all the best music is, from Carlo Gesualdo to Edgard Varese, from Bach's D minor Toccata and Fugue to The Rite of Spring. Beethoven's Ninth is only the most powerful example.
(BTW, it's not quite accurate to say that no one composed symphonies immediately after Beethoven. Schubert, Mendelssohn and Schumann each wrote symphonies, although of those only Schubert's Ninth comes close to matching Beethoven's power.)
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