Dont Rhine co-founded the Los Angeles-based sound art organization Ultra-red in 1994. For ten years Ultra-red has nurtured relationships with social movements based on the direct political experiences of the group’s members. As an activist, Rhine has worked with a variety of social movements including ACT UP (AIDS Coalition to Unleash Power), Clean Needles Now (needle exchange), and Pride at Work / AFL-CIO (queer labor). Rhine’s work as an artist and teacher seeks to develop a sound-art theory and practice informed by conceptual art and his experiences as a political organizer. As Information Secretary for the Ultra-red organization, Rhine has participated most recently in the group's HIV/AIDS performances SILENT|LISTEN and the migrant investigation project BLOK70.