Another notable composition is "Goodnight Moon, An Aria for Singer and Orchestra" which the National Chorale performed at Geffen Hall in 2016.
After graduation, he attended Columbia University and worked on the New York productions of Very Good Eddie, The Madwoman of CPW, Really Rosie, A Party with Betty Comden and Adolph Green, She Loves Me, and Woman of the Year.
He arranged Patti LuPone’s one-woman Broadway show and was the co-musical supervisor for Liza Minnelli's, Stepping Out, at Radio City Music Hall.
On May 28, 2008, Norman's Ark opened the Los Angeles New Musical Festival and was directed by Peter Schneider and produced by Maria S. Schlatter.
Roven also arranged and conducted for Julie Andrews, Jason Alexander, Anita Baker, Kathleen Battle, Michael Bolton, Bono, Brooks and Dunn, Ray Charles, Charlotte Church, Natalie Cole, Plácido Domingo, Ella Fitzgerald, Renée Fleming, Aretha Franklin, Kenny G., Denyce Graves, Goldie Hawn, Scott Hamilton, Gregory Hines, Bob Hope, Whitney Houston, Michael Jackson, Catherine Zeta-Jones, Jane Krakowski, Kermit the Frog, Patti LaBelle, Brian McKnight, Liza Minnelli, Patti LuPone, Bernadette Peters, Chita Rivera, Diana Ross, Lily Tomlin, Shirley MacLaine, Luther Vandross, Nancy Wilson, Stevie Wonder and Trisha Yearwood.
As a CD producer, Roven produced (for GPRrecords) : Jason Alexander, Christine Baranski, Thomas Bagwell, Jamie Barton, Charles Busch, Ann Hampton Callaway, Charles Castronovo, Tom Cipullo, Alan Cumming, Tyne Daly, Joyce DiDonato, Michael Douglas, Nathan Gunn, Lauren Flanigan, Leon Fleisher, Andrew Garland, David Garrison, Joanna Gleason, Ricky Ian Gordon, Joel Grey, Daron Hagen, Dick Hyman, Jake Heggie, Florence Henderson, Rob Kapilow, Barry Humphries, Isabel Leonard, Lowell Liebermann, Wynton Marsalis, Jorge Martín, Susanne Mentzer, Patti LuPone, Gilda Lyons, Kate Mulgrew, Cynthia Nixon, Daniel Okulitch, Chris Parker, Patricia Racette, Chris Sarandon, Paul Shaffer, William Schimmel, Noah Stewart, Paulo Szot, Talise Trevigne, Kathleen Turner, Catherine Zeta-Jones and many others.
For children, Roven produced the Sharon, Lois & Bram album, Candles, Snow and Mistletoe (1993), which was also at the Palace Theatre, New York City.
Roven served as a contributing author to the books Games We Play, published by Simon & Schuster, and City Secrets.