“The coming directors include Vijay Iyer, the jazz pianist and composer, in 2017, and Esa-Pekka Salonen, the composer and conductor, in 2018 … [as well as] Barbara Hannigan, the soprano and conductor whose star has been rising because of her performances of new works, in 2019; Patricia Kopatchinskaja, the searching violinist, in 2020; and, in 2021, Mitsuko Uchida, the pianist and conductor who was last a co-music director of the festival in 1998.”