The Village Voice said of his work, "Joyous ... rarely is new music this much fun". "Mesmerizing", said the Louisville Courier-Journal.
Known for his use of extended vocal and cello techniques, he has recorded eight albums: "Mystery Dances", "Expanding Universe", "Fertile Fields", "Your Life is Not Your Own", "Big Joe", "The Rook" and "Mr. Jealousy" soundtracks, and "Music from Blue Earth."
His scores for film include; "My Horrible Year", "Mr. Jealousy", "Trouble on the Corner", "The Rook", "Guts", and the documentaries "Misty Isle Out" and "Carnival Train."
Robert Een's music for theater and dance can be heard in the repertories of Liz Lerman, David Dorfman, Yin Mei, Brian Selznick, Jennifer Muller, Yoshiko Chuma, Sara Pearson/Patrik Widrig, and Ron K. Brown, among others. As a teacher he has been a guest lecturer and an artist-in-residence at colleges, universities and professional schools around the globe.
His long association with Meredith Monk culminated in their evening-length performance duet, "Facing North."
"What colors these various segments most vividly is Robert Een's score. His cello swells with the warm fullness of loss at some points, or combines with wordless singing to create the feeling of a cool, sharp wind. The hammer dulcimer ties together emotional hues like a pointillistic painting, and the lap dulcimer bends a chord or strums straightforwardly to stunning effect."
Jennifer Fisher Los Angeles Times
"What Hendrix did for the guitar, freeing it from its previous role and expectations, Robert Een does for the cello. "
Richard Kadrey San Francisco Chronicle
"No one knows better how to be avant-garde and have fun at the same time than Robert Een, whose lithe voice and cello glide effortlesslly."
Kyle Gann Village Voice
1. Expanding Universe
2. Black Forest
3. Magic Square
4. Circle Dance
5. May Waltz
6. In the Field