Dr. Marvin Rosen earned his bachelor’s degree in music and music education from Trenton State College (now TCNJ), masters degrees in musicology from the Manhattan School of Music and master's and doctorate degrees in music education from Teachers' College, Columbia University.
His teachers have included Shirley Bachelor and Karl Ulrich Schnabel. From 1979 to 1982 he was first a piano pedagogy student and later a staff member at the New School for Music Study in Kingston, NJ.

Since 1999, he has been a full-time piano faculty member at Westminster Conservatory of Music in Princeton, NJ, where he teaches piano, music history for the Honors Music Program and Musical Styles for the Piano Pedagogy Certification Program.
In 2013 Rosen received the "Distinguished Musician Alumni Award" from TCNJ.

He has presented lectures at: College Music Society’s Northeast Chapter meetings: "Music Of Alan Hovhaness", "Classical Radios Role in the New Millennium" and "The Fuguing Tunes of Henry Cowell", Piano Teachers Forum: 21st Century Piano Literature, Westminster Conservatory at Westminster Choir College and Bucks County Association of Piano Teachers: "21st Century Piano Repertoire Workshop"

He has presented as well lectures for several different organizations, lectures and courses on " New Music", "Music of Women Composers", “The Voices Behind the Walls,” (about music composed by nuns during the Baroque period) and "Treasures of Early Music".

Dr. Rosen’s mission is to expose beautiful, little-known 20th and 21st-century music to audiences through performances, lectures, teaching and his radio program Classical Discoveries.

He has recorded two compact discs of Alan Hovhaness’ piano music for Koch International Classics:
Fred the Cat - Alan Hovhaness - Half a century of piano music, and
Vision of a Starry Night - Alan Hovhaness - More - Half a century of piano music.

From 2010 until 2013 Marvin Rosen was a member of Piano Duo Venti Dita together with pianist and composer Jennifer Castellano. In April of 2013, they released their first recording titled "Child in the Garden" - Contemporary Music for Piano 4 Hands. The recording includes music by American composers as well as works from Estonia, Italy and Latvia.

Dr. Rosen is the author of liner notes for a number of recordings for: Koch International Classics - several CDs featuring music of Hovhaness, Cowell, and other American composers as well as Albany Records (South American String Quartets), MMC Label - Sapphire Summer - Jeanne E. Shaffer.

From 1997 Marvin Rosen is the host  and producer of the weekly radio program Classical Discoveries on WPRB - 103.3FM - Princeton, NJ. This unique radio program devoted to little known repertoire of all musical periods with an emphasis on the old (Baroque and before) and "New Classical Music".

"Classical Discoveries" was the winner of the ASCAP Deems Taylor Radio Broadcast Award in 2005".

From summer, 2008 until 2013, he was in addition the host of "Classical Discoveries Goes Avant-Garde" - program devoted to more modern and electronic music.
During the summer of 2000 and 2001, Marvin hosted an oldies show on the same station.