The swiss born baritone MANUEL WALSER studied singing under Thomas Quasthoff since October 2008 at the Hochschule fĂŒr Musik âHanns Eislerâ in Berlin. Aside from Thomas Quasthoff, his most important mentors and teachers include Brigitte Fassbaender, FrĂ©dĂ©ric Gindraux and Wolfram Rieger. At the International Song Competition Das Leid in Berlin in 2013, he was awarded the first prize and the Publicâs prize. Furthermore, he is a prize winner of the Stella Maris International Song Competition and