[5] He then was granted a Fulbright scholarship to study with Wolfgang Marschner at the Freiburg Hochschule für Musik in Germany, and was the youngest recipient ever to earn the prestigious award.
[2] Halen has appeared as soloist with the orchestras of St. Louis, WDR in Cologne, San Francisco Symphony, Houston, Detroit, and Toronto.
Additionally, he has served as the violinist in the Eliot Trio of Washington University in St. Louis with cellist Bjorn Ranheim and pianist Seth Carlin.
In the fall of 2012, Halen joined the string faculty of the University of Michigan School of Music, Theatre & Dance.
[2] Halen is also the Artistic Director for the Missouri River Festival of the Arts in Boonville, MO held annually at the historic Thespian Hall.