sentences:  One of his later roles for the company was the Notary in "Der Rosenkavalier" in 2016.In 1994 Kraus sang the Vicar in "Albert Herring" with Cleveland Opera, and in 1995, he sang the title role in Verdi's "Rigoletto" with Minnesota Opera.He sang the Sacristan in "Tosca" with Cleveland Opera in 2002.