The Horse takes its title from the Horsehead Nebula, a cloud of gas and dust in outer space, 1,500 light years from Earth. So named due to the shape of its swirling gases, it is visible in the night sky as a dark silhouette against other luminous matter, though above the Horsehead is a bright pink gas which contrasts with the dark gas found below.
For his composition inspired by this phemonemon, Sheridan translates actual interstellar data into the music of The Horse. For the most part this metamorphosis of information into art creates interesting results, but at times – perhaps deliberately – it feels like not much is happening to keep us engaged musically.