Lee has composed over a hundred thirty works: seven symphonies, twelve string quartets, ten concerti for various solo instruments, choral works, song cycles and scores of chamber works. Some of his early works, originally published by Margun Music Inc., have since been transferred to G. Schirmer Inc./Associated Music Publishers. His 100-minute, two-act chamber opera "The Inman Dairies" is available for rental and sale from the Theodore Presser Company. The rest - orchestral, choral, vocal and chamber music - is self-published under the moniker "Departed Feathers Music." His music has been recorded on Nonesuch, MCA Classics, Koch International Classics, BMG Catalyst, Arsis Audio, Northeastern and Gunther Schuller's GM Recordings, Inc.
His most popular work, "Morango ... Almost A Tango," written for and recorded by the Kronos Quartet, has been used in dance by choreographers like Michael Tracy for Pilobolus (dance company), Jiri Kylian for the Netherlands Dance Theater, Danny Rosseel for the Royal Ballet of Flanders, Nicolo Fonte for the Pacific Northwest Ballet and Australian Ballet, Carolyn Carlson for the Cullberg Ballet of Sweden, Olivia Rosenkrantz for Tapage - a tap duo, et al. Additionally, "Morango ..." was used as a sound track for "Call It Sleep" - a documentary on Henry Roth.
Lee has recently ventured into the world of opera. His two-act chamber opera, "The Inman Diaries," (libretto by Jesse J. Martin) about the infamous Boston diarist Arthur Crew Inman was produced and premiered in Boston in 2007 by Intermezzo - The New England Chamber Opera Series. His on-going opera-in-progress is "Oscar Wilde ... An Opera in Two Acts."