Pieces by Alberto Ginastera performed by Norwegian harpist Sidsel Walstad, Norwegian Radio Orchestra, Miguel Harth-Bedoya, Harp Concerto, Variaciones concertantes op.23. Alberto Ginastera (1916-1983) is a distinctive voice in twentieth-century classical music, and together with the master of the tango, Astor Piazzolla, he is the towering musical figure of Argentina.