Robert Fry used the term Visual Music in order to discribe the work of Kandinsky. Kandinsky made a connection between painting and music: “he first related the act of painting to creating music in the manner for which he would later become noted and wrote, “Color is the keyboard, the eyes are the hammer, the soul is the piano with the strings (…). The influence of music has been very important on the birth of abstract art, as it is abstract by nature — it does not try to represent the exterior world but rather to express in an immediate way the inner feelings of the human soul.
Kandinsky sometimes used musical terms to designate his works; he called many of his most spontaneous paintings “improvisations”, while he entitled more elaborated works “compositions”.” His painting “Impression III (Concert)” (1911) was a hommage to the composer Schönberg (who also was a painter!). Castels’ “Occular Harpsichord” was the predecessor of the “Color Organ”. The Optophonic Piano was a silent instrument invented by Vladimir Baranoff Rossiné that projected colours and images.