In 2021, Oxford University Press published an expanded third edition of Adolphe's book The Mind's Ear:Exercises for Improving the Musical Imagination for Composers, Performers, and Listeners.
In 1974, he wrote music for playwright Paul Corrigan's Nancy's Tragic Period and Tan My Hide, which were performed together at La MaMa Experimental Theatre Club in the East Village of Manhattan in May 1974.
In 2009, Adolphe's one-act opera Let Freedom Sing: The Story of Marian Anderson, with a libretto by Carolivia Herron, premiered at the Atlas Theater in Washington, D.C.
Also in 2009, Adolphe's "Violin Concerto" was premiered by violinist Eugene Drucker with the Idyllwild Academy Orchestra and conducted by Peter Askim at the Redcat Theater of Disney Hall in Los Angeles.
The premiere took place at the American Museum of Natural History in New York City, and featured live interactive images that responded to the music.
However, the soundtrack is still available as a on all digital platforms, and features violinist Joshua Bell and pianist Marija Stroke, released by Sony Classical in December 2015.
In 2015, Adolphe's violin concerto "I Will Not Remain Silent", inspired by the life of Joachim Prinz, received its world premiere with the IRIS Orchestra conducted by Michael Stern and Sharon Roffman as soloist.
The latter duo also performed the work at NASA Goddard Space Center in March, 2019, at a colloquium honoring the late scientists and astronaut Piers Sellers.
These works are created primarily for The Learning Maestros, Adolphe's education company, which he co-founded with Julian Fifer, an impresario best known as founder and executive director of the Orpheus Chamber Orchestra.