Mordecai (Markus) Sandberg (Hebrew: ????? ???????) (February 4, 1897 – December 28, 1973) was a composer and physician.
He was a creative and prolific composer, a musical theorist, and an innovative physician in the area of alternative and natural medicine in 1920s and 1930s Jerusalem.
Sandberg was a pioneer in the field of microtonal theory and music.
He believed that a microtonal system of music could be the basis of making “a music of humanity” that would bring people together from all cultures and transcend local traditions.
He argued that although there seemed to be a conflict between the western and eastern tonal systems, there was in reality one music and one humanity.
He developed his Universal Tonal System, a synthesis of oriental and occidental scales using microtones.
He also designed several instruments and a notation system for microtonal music.
As a composer of microtonal music Sandberg intended to translate and interpret the sacred texts of all the worlds’ religions to musical form.
He began his monumental project with the Hebrew Bible, from his own European Jewish tradition.
He theorized that microtonal music, incorporating the tonal traditions of Asia, was an appropriate means for setting Hebrew, an Oriental language, to music.
Over the course of his life, Sandberg produced some twenty thousand pages of musical composition.
His magnum opus was Symphonic Psalms, the setting of the Book of Psalms to music, a task which comprised more than twelve thousand pages of composition.