| 1939 | Francisco Canaro | - | Ojos verdes | tango |
| 2001 | Miguel Villasboas | - | Olas nocturnas | vals |
| 1920 | Roberto Firpo | - | Olas nocturnas | vals |
| 1975 | Ariel Ramirez | - | Olga | vals |
| 1941 | Armando Pontier | - | Olga | vals |
| 1927 | Francisco Canaro | - | Olga | vals |
| 1948 | Juan Cambareri | - | Olga | vals |
| 1997 | Miguel Villasboas | - | Olga | vals |
| 1920 | Roberto Firpo | - | Olga | vals |
| 1951 | Tito Martin | - | Olga | vals |
| 9999 | Quinteto Don Pancho dir. Francisco Canaro | - | Olga | vals |
| 1927 | Francisco Canaro | - | Olguita | tango |
| 1927 | Francisco Canaro | - | Olimpia | tango |
| 1930 | Julio De Caro | - | Olimpia | Rio de Janeiro | tango |
| 1927 | Francisco Lomuto | - | Olimpicos | tango |
| 1951 | Osvaldo Pugliese | - | Olivero | tango |
| 1920 | Roberto Firpo | - | Olvida corazon | tango |
| 1928 | Orquesta Tipica Victor | - | Olvidame | tango |
| 1927 | Francisco Lomuto | - | Olvidame para siempre | tango |
| 1932 | Francisco Canaro | - | Olvidao | tango |
| 1928 | Orquesta Tipica Victor | - | Olvidaste | tango |
| 1928 | Orquesta Tipica Victor | - | Olvido | tango |
| 1994 | Sexteto Mayor | - | Onda nueve | tango |
| 1928 | Orquesta Tipica Victor | - | Ondas del Danubio | vals |
| 1938 | Roberto Firpo | - | Ondas sonoras | vals |
| 1927 | Francisco Canaro | - | Oracion | vals |
| 1927 | Francisco Canaro | - | Organito | tango |
| 1994 | Sexteto Mayor | - | Organito arrabalero | tango |
| 2000 | Ariel Ramirez | - | Organito de la tarde | tango |
| 1953 | Cristobal Herreros | - | Organito de la tarde | tango |
| 1951 | Dante Puricelli | - | Organito de la tarde | tango |
| 1973 | Florindo Sassone | - | Organito de la tarde | tango |
| 1927 | Francisco Canaro | - | Organito de la tarde | tango |
| 1940 | Mariano Mores | - | Organito de la tarde | tango |
| 9999 | Jose Libertella | - | Organito de la tarde | tango |
| 1970 | Jose Basso | - | Organito de la tarde | tango |
| 1949 | Luis Nicolas Visca | - | Organito de la tarde | tango |
| 1997 | Miguel Villasboas | - | Organito de la tarde | tango |
| 1928 | Osvaldo Fresedo | - | Organito de la tarde | tango |
| 1998 | Ricardo Pedevilla | - | Organito de la tarde | tango |
| 9999 | Trio Central | - | Organito de la tarde | tango |
| 9999 | Nuevo Quinteto Real | - | Organito de la tarde | tango |
| 1952 | Quinteto Real | - | Organito de la tarde | tango |
| 2008 | Orquesta El Arranque | - | Organito de la tarde | tango |
| 9999 | Orquesta Escuela de tango | - | Organito de la tarde | tango |
| 1984 | Los Solistas de D'Arienzo | - | Organito de la tarde | tango |
| 1951 | Orquesta Puglia-Pedroza | - | Organito de la tarde | tango |
| 1997 | Miguel Villasboas | - | Organito de suburbio | milonga |
| 1920 | Roberto Firpo | - | Organito de suburbio | milonga |
| 1926 | Jose Bohr | - | Orgias de amor | tango |
| 1927 | Atilio Stampone | - | Orgullo criollo | tango |
| 1946 | Astor Piazzolla | - | Orgullo criollo | tango |
| 1994 | Sexteto Mayor | - | Orgullo criollo | tango |
| 1931 | Orquesta Tipica Brodman-Alfaro | - | Orgullo criollo | tango |
| 1996 | Color Tango | - | Orgullo criollo | tango |
| 9999 | Los siete del tango | - | Orgullo criollo | tango |
| 1929 | Francisco Lomuto | - | Orgullosa | tango |
| 1928 | Orquesta Tipica Victor | - | Orgullosa | tango |
| 1949 | Adolfo Perez | - | Orillas del plata | vals |
| 1929 | Juan Bautista Guido | - | Orillas del plata | vals |
| 1950 | Quinteto Pirincho dir. Francisco Canaro | - | Orillera | milonga |
| 1959 | La Tubatango | - | Orillera | tango |
| 9999 | Alfredo J. Gobbi | - | Orlando Goni | tango |
| 1994 | Sexteto Mayor | - | Orlando Goni | tango |
| 2005 | Orquesta Matos Rodriguez | - | Orlando Goni | tango |
| 1955 | Juan D'Arienzo | - | Orlando Goni | A Orlando Goni | tango |
| 2005 | Juanjo Dominguez | - | Orlando Goni | A Orlando Goni | tango |
| 1927 | Osvaldo Pugliese | - | Orlando Goni | A Orlando Goni | tango |
| 2009 | Orquesta Tipica Fernandez Fierro | - | Orlando Goni | A Orlando Goni | tango |
| 9999 | Puro Apronte | - | Orlando Goni | A Orlando Goni | tango |
| 1920 | Roberto Firpo | - | Oro muerto | tango |
| 1922 | Osvaldo Fresedo | - | Oro y seda | tango |
| 1928 | Osvaldo Fresedo | - | Orquideas negras | vals |
| 1997 | Miguel Villasboas | - | Oscar | tango milonga |
| 1928 | Osvaldo Fresedo | - | Oscarcito | tango |
| 9999 | Rodolfo Mederos | - | Ostinato tango | tango |
| 1927 | Francisco Canaro | - | Otonal | tango |
| 9999 | Jose Colangelo | - | Otonal | tango |
| 1929 | Eduardo Bianco | - | Otono | tango |
| 1927 | Francisco Canaro | - | Otono | tango |
| 1927 | Osvaldo Fresedo | - | Otono | tango |
| 1974 | Hugo Diaz | - | Otono porteno | tango |
| 9999 | Raul Miguel Garello | - | Otono porteno | tango |
| 2008 | QuinTango | - | Otono porteno | tango |
| 9999 | Ensemble Hyperion | - | Otono porteno | tango |
| 9999 | Carlos Libedinsky | - | Otra luna | electro |
| 9999 | Daniel Melingo | - | Otro | tango |
| 1927 | Francisco Canaro | - | Otro trago | tango |
| 1996 | Color Tango | - | Oxidado | tango |
| 9999 | Orquesta Tipica Select | - | Pa mi solito | tango argentino |
| 1927 | Francisco Canaro | - | Pa que bronques | tango |
| 1927 | Francisco Canaro | - | Pa que mas | tango |
| 1964 | Osvaldo Pugliese | - | Pa' la guardia | tango |
| 1955 | Orquesta Simbolo Osmar Maderna dir. Aquiles Roggero | - | Pa' la guardia | tango |
| 1996 | Color Tango | - | Pa' los tres | tango |
| 9999 | Julio Ahumada Miguel Bonano | - | Pa' mama | tango |
| 1927 | Francisco Canaro | - | Pa' mi es igual | tango |
| 1974 | Hugo Diaz | - | Pa' que bailen los muchachos | tango |
| 1962 | Osvaldo Requena | - | Pa' que bailen los muchachos | tango |
| 1962 | Trio Pantango | - | Pa' que bailen los muchachos | tango |