Instead of redoing my discussion of this piece, I am going to send you to a fairly lengthy post I did on it last year:
I have a feeling that this series will not be able to continue too much longer, simply because, due to copyright restrictions, I do not have easy access to the scores and without those, my comments would tend to the superficial. Some pieces I would like to cover are the Ebony Concerto by Stravinsky, the Violin Concerto No. 1 by Shostakovich, the Clarinet Concerto by Copland and so on. But I don't have access to those scores. So I might do a few posts just touching on a few concertos and leave it at that. I would like to comment on the concertos by Philip Glass, Esa-Pekka Salonen, Thomas Adès, for example, but without the scores, I can't delve too deeply. I might do a post on guitar concertos as I have played quite a few of them. But this lengthy series of posts is coming to an end, so if you have any suggestions as to a good theme for a new series, just leave them in the comments.
In the post I linked above, the clip is of Hilary Hahn playing the Schoenberg concerto, which is a really wonderful performance. Here is an interesting little clip where Arnold Schoenberg's grandson asks Hilary Hahn the same questions that his grandfather asked Louis Krasner when he was performing it.