Mr. Diamond is best known as a composer, musician and librettist, where he has created a vision of new art that fuses electronic media and words with classical music.

He has composed well over 100 works in all medium including symphonic and chamber music, theater, dance, film and video. He has written for a diverse range of artists, including Kronos String Quartet, Metropolitan Opera star Elinor Ross, Israeli cellist Simca Heled and Max Polikoff, the founder of the first "Music in Our Times" series at the 92nd Street YMHA. He has written works for the SLC Orchestra, Topango Symphony, Ensemble Arte Viva de la Sorbonne Paris and theMeadows Chamber Orchestra. Most recently Karen Bentley premiered KONZERTO for Violin and Electric Orchestra.

Mr. Diamond was one of the first musicians to perform with the Lyricon, the original wind synthesizer. The Lyricon is an instrument that transforms a performer’s wind and embouchure pressures into electrical voltages that in turn control the dynamics parameters of a synthesizer. As a result the synthesizer is turned into an instrument of remarkable expression and power.

Many of his seminal works incorporated the use of live performance electronic instruments, creating huge soundscapes that were a synergy of contemporary sound with classical musical forms.