XX əsr musiqisində fortepianonun yeni növləri haqqında
The article tells about the history of piano transformation in the musical culture of the twentieth century. The path from the traditional piano to the works for the non-existent version of Cowell and Lurie, and to the prepared Cage piano is traced. Then are traced the way of using the piano in concrete music and the appearance of an acoustic piano. It is noted that the last form is new, and in fact, completely different from the traditional piano form.