sentences:  Kraus began a long association as soloist with the Grant Park Concerts in Chicago in 1979, performing Haydn's "Mass in Time of War" under conductor Thomas Peck.He followed this singing Elgar's "The Kingdom", under Leonard Slatkin, in 1981.Kraus went on to sing with other American orchestras, including the Cleveland Orchestra, Dallas Symphony, Milwaukee Symphony Orchestra, and many others, working with conductors Erich Leinsdorf, Eduardo Mata, Zdeněk Mácal, Andrew Davis, James Conlon, David Zinman, Claudio Abbado, James Levine, Lukas Foss, Mark Elder, Anton Coppola, Gisele Ben-Dor, and Marin Alsop.