Percy Grainger. Free Music n.2, theremin

In 1936, the Australian composer, Percy Grainger created Free Music n.2 graphical score for six theremins. Yet, it  was not performed by theremins untill year 2001, when Lydia Kavina recorded this piece for her album Spellbound. All tracks were played by Lydia. The recording was done at Moscow Theremin Centre for
"Spellbound" CD, released by MODE records

The reconstruction of Grainger's score by Lydia Kavina.
Animation by Mike Buffington