My teacher is a faculty member at Juilliard so hopefully that meets your level of accountability.
tchaikovsky 1 is a masterpiece and definitely worth a try
I see. I'm just wondering what are the general top top level concertos per se. I'm surprised Tchaik 1 isn't so relatively difficult (in violin world some people put it on its own level of difficulty). How difficult do Brahms 1 or Brahms 2 stack up? I assume 2 is much more difficult to put together. How frequently do people learn Brahms 1?