"Hungarian dances for piano, four hands n \u00B01-21" . . . "Piano \u00E0 4 mains"@fr . "Piano \u00E0 4 mains"@fr . . "Waltzes for piano, four hands, op 39" . "Hungarian dances for piano, four hands n \u00B01-21" . "16 valses"@fr . "Waltzes for piano, four hands, op 39" . . . . . . "16 valses"@fr .