“[Beethoven’s themes] appear and disappear, they get stretched, I turn them upside down, I pile one on top of another on top of another and create a very dynamic dialogue,” says composer John Adams of his Absolute Jest. In this Jest, which features New York City’s dazzling Aizuri Quartet, Adams warps fragments of the Ninth, Beethoven’s late string quartets, and more. The MSO holds nothing back in these season finale concerts, which conclude with Beethoven’s iconic Ninth Symphony.