There were a few points made about the music and I have to agree, in TLJ it’s pretty weak. I’ve listened to it a few times and seen the movie just recently, but it’s not growing on me. The Resistance theme was bland in TFA and here it just feels overused. I would have really enjoyed new pieces for individual scenes like ESB. Rose gets a theme but it’s bleh. There are no Asteroid Field moments. Even scenes like the Throne Room would have been given a unique tune back in the old days - which is where all the best stuff here (Luke and Leia, TIE Fighter Attack) comes from.
I love John Williams and I always will, but his work is not what it once was. His 1980s work is probably the best that has ever been in the film industry, so admittedly its a bit unfair to have that expectation.
His TLJ score is very good, but as Mocata said it can’t hold a candle to his OT stuff.