Some immediate thoughts
Feliciano wrote:It would be interesting to return to the coincidence between composer and performer, as when Mozart, Beethoven, Liszt or Chopin were alive......
Not a chance; I would be confined within my performing limits, my music would only be that which stays in my hands... instead, I want my music to be that which is at least in the hands of Pollini.
I want my music to be playable by an entire ensemble; the instrumental technique and that of the instrumentalists was not so evolved and was very horizontal. Now everything is very vertical; the strong specialization of each individual allows one to reach extremely high levels and infinite nuances.
Compare any symphony by Haydn (even the late ones) with Rachmaninoff's third piano concerto for pf and orchestra; Haydn is beautiful, but it's not even comparable.
And I am not putting it on the level of competition, but on the level of possibilities from which to choose.
Think about the implications, even just regarding the figure of the conductor. Can you see Beethoven playing the piano part of the Rach3? We would never have arrived here if there hadn't been a process of specialization of the performer behind it, which over time reached unimaginable levels, thanks to the evolution of instrument technique.
Now I say:
- in the 1300s, the composer studied the cadences and was done. What was the orchestra?
- in the 1500s, they added a bit of counterpoint and were done. What was the orchestra?
- between 1700 and 1800, they even added a bit of harmony and were done. What was the orchestra?
- we all know what one needs to know about the '900s?: Twelve-tone technique, serialism, jazz, electronic music, etc.
- Today, is there an established performance practice? No. As soon as everything that has already been done has been studied, one can finally seek a personal style without falling into anachronism.
How can you compare how much I must study and know versus the Leoninus and Perotinus of the time? Therefore, there is not only a technical limit but also a limit to the sustainability of instrumental study, which would be dedicated to playing worse than Pollini.
But it's not just like this with music; I have a physical friend who works abroad, he studied his whole life to barely know how an airplane wing is made... I hope that makes the parallel clear.
... Leonardo da Vinci's times ended a while ago, in the sense of the 360° genius.