Karl E. H. Seigfried is a German–American jazz, rock, and classical bassist, guitarist, composer, bandleader, writer and educator based in Chicago. Seigfried has performed and taught on the double bass "in virtually all musical styles – from classical to avant garde jazz." His projects in Chicago and his wide-ranging collaborations have largely been centered on an effort to promote multiculturalism in music. Critics have compared his double bass approach to those of Malachi Favors, Henry Grimes, Charlie Haden, Charles Mingus, and Sirone.