Hustis has been Chamber Music Director and Festival Artistic Advisor for 11 years and a member of the orchestra almost from the start of the Festival. Since 1976, he has been a member of the Dallas Symphony Orchestra, where he is Principal Horn and has served on the board of directors. He also teaches horn at Southern Methodist University, where he received the Meadows Foundation Distinguished Teaching Award in 1995. A clinician, chamber music player and recitalist, he has performed at other summer music festivals, including Bravo!Vail, Sarasota Music Festival and Mainly Mozart in San Diego.