Don't worry, he has really good performance skill already! Technique takes time to develop. How old is he?How is his sight-reading?
Wow! 13 years old and playing like a champion already! I'm jealous actually, I don't think I could play like this. I tried no1 and gave up. Brahms is difficult. It is strange to see such a young person play this way. Alot of young kids have amazing technique but it seems like he understands this piece. Is that possible though? Can a 13 understand this? The way he plays it is like he does, but a 13 year old with a Steinway couldn't have suffered enough in life to play a piece like this. Regardless, he does, and it's convincing so bravo!!!That B has a killer base! Needs to be tuned though.I cant judge technique because I'm self taught so listen to awesome_o but I can be critical with music. 26 seconds: it's not mysterious enough. If that means anything to you. I can't explain. Like more articulate and more pedal.The section at 52 seconds is too slow. I understand the desire to play this extra ordinary beautiful section slow, but the notes Brahms composed are enough to do the trick. Don't break the rhythm of the price. It almost sounds like a different piece there.. I'm sorry it's just too slow. Too much rubato. Trust Brahms, the notes do the job there Anyway, that's just my opinion so don't listen to me unless someone with actual education confirms like awesome_o...Don't want to end on a bad note. Love your son's playing!!!