Giacinto Scelsi, Count of Ayala Valva (January 8, 1905 – August 9, 1988), was an Italian composer. He is best known for writing music based on onlyonepitch, such as Quattro Pezzi Su Una Nota Sola [“Four pieces each on a single note”] (1959). He also wrote surrealist poetry in French.
Born in La Spezia, Italy, Scelsi studied music first in Rome, and later in Vienna, with a disciple of Arnold Schönberg. Subsequently Scelsi became oneof thefirst adepts of dodecaphony in Italy.