As a teenager he played Wagner's Tristan und Isolde in a piano duet; and he also played it when in a grip of madness in January 1889 in Turin.
At the second desk was a half-finished set of Beethoven's symphonies that Czerny was arranging for piano duet for another publisher.
He wrote a quantity of piano duets (one piano, four hands), a form of music which has attracted few composers;
For example, at a school talent show, a new Japanese student played a piano duet with an American classmate.
Designed for four hands, as a piano duet.
