Musikverein Wien has announced its 2019-20 season. For the purposes of this article, we will focus on vocal performances. Martin Haselböck will lead the Orchester Wiener Akademie in a performance of various works by Franz Schubert as well as Antonín Dvořák’s Symphony No. 4 in D Minor. Baritone Thomas Hampson will be featured. Performance Date: Oct. 13, 2019 Bass Günther Groissböck and {…}