| 1994 | Sexteto Mayor | - | Organito arrabalero | tango |
| 1946 | Enrique Delfino Manuel Parada | Azucena Maizani | Organito | tango |
| 1927 | Francisco Canaro | - | Organito | tango |
| 9999 | Guitarras de Carlos Peralta | Daniel Olivera | Ordenando fracasos | tango canta |
| 1954 | guitars | Edmundo Rivero | Oracion rante | tango |
| 1994 | Ismael Spitalnik | Aldo Calderon | Oracion rante | tango |
| 1953 | Roberto Calo | Enrique Campos | Oracion rante | tango |
| 1954 | - | Edmundo Rivero | Oracion rante | tango |
| 1954 | Jose Sala | Carlos Yanel (Siro San Roman) | Oracion rante | tango canta |
| 1954 | Miguel Calo | Alberto Podesta | Oracion rante | tango canta |
| 1954 | Alfredo De Angelis | Oscar Larroca | Oracion rante | tango canta |
| 1954 | Armando Lacava | Angel Vargas | Oracion rante | tango canta |
| 1954 | Angel Dominguez | Roberto Chanel | Oracion rante | tango canta |
| 1956 | Ricardo Malerba | Alberto Sanchez | Oracion peruana | tango |
| 1962 | Miguel Calo | - | Oracion de labriego | vals |
| 9999 | - | Hernan Salinas | Oracion criolla | tango |
| 1969 | Carlos Figari | Tita Merello | Oracion criolla | tango canta |
| 1930 | Bachicha | Teresita Asprella | Oracion | tango |
| 1930 | Bachicha | Emilia Garcia | Oracion | tango |
| 2001 | Francisco Lomuto | Jorge Omar | Oracion | tango |
| 1928 | - | Agustin Magaldi y Pedro Noda | Oracion | cancion |
| 1927 | Francisco Canaro | - | Oracion | vals |
| 1934 | - | Agustin Magaldi | Oracion | tango |
| 1930 | Minotti Di Cicco | Antonio Buglione | Operate el trigemino | tango |
| 1930 | Minotto Di Cicco | Antonio Buglione | Operate el trigemino | tango canta |
| 1938 | Roberto Firpo | - | Ondas sonoras | vals |
| 1928 | Orquesta Tipica Victor | - | Ondas del Danubio | vals |
| 1994 | Sexteto Mayor | - | Onda nueve | tango |
| 1952 | Jose Basso | - | Once y uno | tango |
| 1925 | Horacio Pettorossi | -unspecified male- | Olvido | tango |
| 1952 | Francisco Canaro | Roberto Maida | Olvido | tango |
| 1928 | Orquesta Tipica Victor | - | Olvido | tango |
| 1930 | - | Roberto Goyeneche | Olvido | tango canta |
| 1935 | Francisco Canaro | Charlo | Olvido | tango canta |
| 1964 | - | Charlo | Olvido | tango canta |
| 1963 | Juan D'Arienzo | Jorge Valdez | Olvidemos todo | tango canta |
| 1928 | Orquesta Tipica Victor | - | Olvidaste | tango |
| 1954 | guitars | Edmundo Rivero | Olvidao | tango |
| 1954 | guitars | Charlo | Olvidao | tango |
| 1945 | Enrique Francini Armando Pontier | Julio Sosa | Olvidao | tango |
| 1950 | - | Edmundo Rivero | Olvidao | tango |
| 1932 | Francisco Canaro | - | Olvidao | tango |
| 1932 | - | Charlo | Olvidao | tango canta |
| 1932 | Adolfo Carabelli | Charlo | Olvidao | tango canta |
| 1953 | Osvaldo Pugliese | Juan Carlos Cobos | Olvidao | tango canta |
| 1941 | Juan D'Arienzo | Alberto Reynal | Olvidao | tango canta |
| 1953 | Francini-Pontier | Julio Sosa | Olvidao | tango canta |
| 1927 | Francisco Lomuto | - | Olvidame para siempre | tango |
| 1959 | Miguel Calo | - | Olvidame (Risque) | tango |
| 1937 | Rafael Canaro | Luis Mariano | Olvidame | tango |
| 1928 | Orquesta Tipica Victor | - | Olvidame | tango |
| 1939 | Juan D'Arienzo | Alberto Echagoe | Olvidame | tango |
| 1938 | Francisco Canaro | Roberto Maida | Olvidame | tango |
| 1925 | Eduardo Bianco | -unspecified male- | Olvidala | tango |
| 1925 | Eduardo Bianco | Federico Linae | Olvidala | tango |
| 1920 | Roberto Firpo | - | Olvida corazon | tango |
| 1951 | Osvaldo Pugliese | - | Olivero | tango |
| 1927 | Francisco Lomuto | - | Olimpicos | tango |
| 1930 | Julio De Caro | - | Olimpia | Rio de Janeiro | tango |
| 1951 | Francisco Canaro | Ernesto Fama | Olimpia | tango |
| 1927 | Francisco Canaro | - | Olimpia | tango |
| 1927 | Francisco Canaro | - | Olguita | tango |
| 9999 | Rafael Rossi | -unspecified male- | Olga | vals |
| 9999 | Quinteto Don Pancho dir. Francisco Canaro | - | Olga | vals |
| 1951 | Tito Martin | - | Olga | vals |
| 1920 | Roberto Firpo | - | Olga | vals |
| 1997 | Miguel Villasboas | - | Olga | vals |
| 1948 | Juan Cambareri | - | Olga | vals |
| 1927 | Francisco Canaro | - | Olga | vals |
| 1941 | Armando Pontier | - | Olga | vals |
| 1975 | Ariel Ramirez | - | Olga | vals |
| 1948 | Juan D'Arienzo | - | Olga | vals |
| 1954 | Alfredo De Angelis | - | Olga | vals |
| 1920 | Roberto Firpo | - | Olas nocturnas | vals |
| 2001 | Miguel Villasboas | - | Olas nocturnas | vals |
| 1932 | Francisco Lomuto | Alberto Rivera | Ojos verdes | vals |
| 1941 | Francisco Canaro | Carlos Roldan | Ojos verdes | vals |
| 1939 | Francisco Canaro | - | Ojos verdes | tango |
| 1939 | Francisco Canaro | Francisco Amor | Ojos verdes | vals |
| 1948 | Astor Piazzolla | Hector Insua | Ojos tristes | Ojos muertos | tango |
| 1950 | - | Alberto Marino | Ojos tristes | Ojos muertos | tango |
| 1946 | - | Oscar Nelson | Ojos tristes | tango |
| 1947 | Astor Piazzolla | Hector Insua | Ojos tristes | tango |
| 1970 | Carlos Garcia | Oscar Alonso | Ojos tristes | tango canta |
| 1926 | Francisco Lomuto | - | Ojos que no ven | tango |
| 1932 | Roberto Firpo | Carlos A. Varela | Ojos que lloran | vals |
| 1928 | Orquesta Tipica Victor | - | Ojos que brillan | tango |
| 1935 | Francisco Canaro | Roberto Maida | Ojos negros que fascinan | tango |
| 1944 | - | Alberto Gomez | Ojos negros | tango |
| 9999 | Los cosos de al lao | - | Ojos negros | tango |
| 1994 | Sexteto Mayor | - | Ojos negros | tango |
| 1952 | Quinteto Real | - | Ojos negros | tango |
| 1942 | Hector Varela | - | Ojos negros | tango |
| 1920 | Roberto Firpo | - | Ojos negros | tango |
| 1980 | Raul Miguel Garello | - | Ojos negros | tango |
| 1927 | Osvaldo Fresedo | - | Ojos negros | tango |
| 1946 | Osmar Maderna | - | Ojos negros | tango |
| 1997 | Miguel Villasboas | - | Ojos negros | tango |
| 1952 | Julio De Caro | - | Ojos negros | tango |
| 9999 | Juan Jose Mosalini | - | Ojos negros | tango |