Gudrun Raschen has extensive solo, orchestral, and chamber music experience on double bass and cello. She has given concerts in the United States, Brazil, Mexico, Bolivia, Poland, Finland, Italy, Germany, Vietnam, South Africa, and Namibia. She has taught and performed at the Pan American Music Festival in South Texas, International Chamber Music Festival in South Africa, International Bass Convention in Poland, Oficina de Música in Curitiba, Brazil, International Chamber Music Festival in Positano, Italy, the Arts Festival Autumn Melodies in Vietnam and Performing Arts Festival in Hawaii.

In addition, Gudrun helped establish the Mittenwald International Double Bass Masterclasses in Germany (2006), where she taught for several years. In the US, she has performed with the Fort Worth, Richardson, Wichita Falls, Miami Symphony, Dallas and Texas Chamber Orchestras, and in early music concerts with the American Baroque Opera, Denton Bach Society, Orchestra of New Spain, Texas Camerata, Fantasmi, Fleurs de Lys, and Ensemble VIII. She has toured with ensembles in Brazil, Bolivia, Mexico, and Vietnam.

Raschen teaches double bass and is the coordinator for chamber music at the University of North Texas. Her students have won the International Society of Bassists Solo Competition, the American String Teachers Competition (both Junior and Senior levels,) the Eisenmann International Concerto Competition (1st and 3rd prize), second prize at the Sphinx and third prize Prix Orford Musique competitions, and first prizes at Louisiana Bass Festival Solo/Orchestral competitions, and the Denton Bach Society Solo Competition. Her students have been accepted to study at the Juilliard
School, Colburn School, Curtis Institute, Oberlin Conservatory, Boston University, Manhattan School of Music, Northwestern University, University of Michigan, Indiana University, Peabody Conservatory, New England Conservatory, Rice University, Southern Methodist University, and UT Austin.