William Copper

Composer of contemporary classical music, theorist, and an authority on the science of structuring music according to intonation.

M.I.T. – Eastman School of Music – Fulbright Scholar

Student of George Crumb and Krzysztof Penderecki

Inventor of Intonalism


*note spring 2024 website is being updated and some features not operational*

Image of William Copper

L’elisir d’amore – Elixir of Love

Step into the world of William Copper’s newest featured work, where timeless beauty is birthed from a journey of exploration. Dive into a realm where the enduring allure of opera is renewed with a vibrant twist. Explore how love, passion, and a dash of magic intertwine in a story woven with novel melodies, and rhythmic energy that promises to resonate with your soul. Discover more and let yourself be transported by the magic of the music.


Declaration of Independence

You are invited to explore the newest symphonic work that tells the story of the American Revolutionary War in the “Declaration of Independence”.  Enjoy episodes in music from the first salute to the new nation through the challenges of a long war and long winters to the victory at Yorktown.



A complete selection of works by William Copper.



Commission a custom piece for your ensemble.

“The perfect choral work!”
Ave Regina Caelorum
“A sophisticated and dramatic work, full of pathos.”
Stabat Mater
“Super innovative!”
Elixir of Love
“A work of singular grace.”
Lovelife Dances
“A gem.”
In memoriam Shostakovich for Piano Trio
“I love, love, love it!”
Ave Regina

wholly enrapturing Ave Regina achieves a lyrical grandeur

“First prize.”
String Quartet #1
Prisma Vol. 5

Latest Release

This Full Bowl Of Roses, Part III

A fugue appropriate to the image of the roses in the bowl, as described so beautifully in the poem of the same name by Rainer Maria Rilke.

View all Recordings

Apple Music   Spotify   Amazon Music   Youtube

Sheet Music Store

Browse the Hartenshield Music publishing catalog and purchase music for orchestras, chamber ensembles, and more.