| O (“O”) | | tango | Luciano Leocata | Oscar Macri | spa | 1957 | 02:42 | 1 | info |
| O que e que a Baiana tem | Que es lo que tiene la bahiana | T0721428790 | arreglo en tango | Francisco Canaro | Ernesto Famá | spa | 1939-09-11 | 03:02 | 3 | info |
| Oasis | | vals | Héctor Stamponi | Alberto Marino | spa | 1955-11-18 | 02:48 | 1 | info |
| Oblivion | T9007751635 | tango | Ensemble Hyperion | Antonella Ruggiero | spa | 2010-07-21 | 03:47 | 1 | info |
| Obsesión | Z0999900580 | tango | Alfredo De Angelis | Juan Carlos Godoy | spa | 1964 | 03:12 | 1 | info |
| Ocaso | Z0999900985 | tango | -unspecified orchestra- | Libertad Lamarque | spa | 1932-08-05 | 02:58 | 3 | info |
| Odio la mentira | | tango | Osvaldo Fresedo | | spa | 1968 | 02:21 | 1 | info |
| Ofrenda | | tango | Roberto Firpo | Teófilo Ibáñez | spa | 1929-04-18 | 02:50 | 1 | info |
| Ofrenda | | tango | Roberto Firpo | Teófilo Ibáñez | spa | 1929-04-28 | 02:55 | 2 | info |
| Ofrenda gaucha | T0370021718 | estilo | Guillermo Barbieri, José María Aguilar | Carlos Gardel, José Razzano | spa | 1929-12-18 | 03:14 | 4 | info |
| Ofrenda maleva | T0370021729 | tango | Ángel Domingo Riverol, Domingo Julio Vivas, Guillermo Barbieri | Carlos Gardel | spa | 1931-09-04 | 02:16 | 5 | info |
| Oh Johnny, oh Johnny, oh | T9011361721 | fox trot | Francisco Lomuto | Jorge Omar | spa | 1940-08-01 | 02:08 | 2 | info |
| Oh Margarita | | vals | | Héctor Mauré | spa | | | 1 | info |
| Oh Paris | T0370202575 | fox trot | Enrique Rodríguez | Ricardo Herrera | spa | 1948-06-21 | 02:31 | 2 | info |
| Oh Paris! | T0370202575 | fox trot | | Carlos Gardel | spa | 1924 | 02:25 | 5 | info |
| Oh ma cheri | | fox trot | Adolfo Carabelli | Alberto Gómez | spa | 1932-03-04 | 02:53 | 1 | info |
| Oh mama | T0700978502 | paso doble | Enrique Rodríguez | Roberto Flores | spa | 1938-09-21 | 02:40 | 1 | info |
| Oh mama mia | T0370455585 | tango | Rodolfo Biagi | Hugo Duval | spa | 1959-09-16 | 02:37 | 2 | info |
| Oh mama mia | T0370455585 | tango | Trío Yumba | Hugo Duval | spa | | 02:48 | 1 | info |
| Oh mamá (Oh ma-ma) | | paso doble | Enrique Rodríguez | Roberto Flores | spa | 1938-09-21 | 02:41 | 1 | info |
| Oh penas mias | | ? | | Carlos Gardel | spa | 1925 | | 2 | info |
| Oh, señor Colón | | corrido | Feliciano Brunelli | Roberto Morales | spa | 1950-05-12 | 02:12 | 2 | info |
| Oh-Te-Lo | T0370178816 | corrido | Francisco Canaro | Carlos Roldán | spa | 1942-01-13 | | 1 | info |
| Oh-Te-Lo | T0370178816 | corrido | Francisco Canaro | Carlos Roldán | spa | 1942-01-13 | 02:59 | 1 | info |
| Oiga garcón | Z0999901223 | tango | Francisco Canaro | Charlo | spa | 1929-08-21 | 02:56 | 4 | info |
| Oiga rubia | T0370202202 | milonga | Francisco Canaro | Carlos Roldán | spa | 1944-01-03 | 03:00 | 6 | info |
| Oiga! | T0370149191 | tango | Osvaldo Fresedo | Juan Carlos Thorry | spa | 1927-07-30 | 03:00 | 4 | info |
| Oiga, Don Ramón | Z0999901628 | ranchera | Julio De Caro | Luis Díaz | spa | 1931 | 02:32 | 3 | info |
| Oiga, agente | T0370149204 | tango canción | -unspecified guitars- | Mercedes Simone | spa | 1928-02-01 | 02:47 | 4 | info |
| Oiga, compadre | T0370149248 | tango | Minotti Di Cicco | Antonio Buglione | spa | 1930 | 02:53 | 4 | info |
| Oiga, compadre | T0370149248 | tango | -unspecified guitars- | Alberto Vila | spa | | | 1 | info |
| Oiga, madre | Z0999900767 | vals | -unspecified guitars- | Rosita Quiroga | spa | 1925-12-11 | 03:23 | 1 | info |
| Oiga, mozo | T0370190412 | tango | Ángel D'Agostino | Ángel Vargas | spa | 1942-10-29 | 03:11 | 5 | info |
| Oiga, mozo | T0370190412 | tango | Ricardo Malerba | Orlando Medina | spa | 1942-11-19 | 03:09 | 5 | info |
| Oiga... amigo! | T0370149215 | tango | José Ricardo | Carlos Gardel | spa | 1925-12-27 | | 3 | info |
| Oiga... amigo! | T0370149215 | tango | José Ricardo | Carlos Gardel | spa | 1926 | | 3 | info |
| Oigo tu voz | T0370175555 | tango | Lucio Demare | Raúl Berón | spa | 1943-11-25 | 02:59 | 8 | info |
| Oigo tu voz | T0370175555 | tango | Ricardo Tanturi | Enrique Campos | spa | 1943-11-17 | 03:09 | 11 | info |
| Oigo tu voz | T0370175555 | tango | Sexteto Milonguero | | spa | | 03:07 | 1 | info |
| Ojo clínico | Z0999900894 | tango | Pedro Maffia | Luis Díaz | spa | 1930 | 03:09 | 3 | info |
| Ojos brujos | T0373525495 | vals | | Agustín Magaldi, Pedro Noda | spa | | | 1 | info |
| Ojos brujos | T0373525495 | ? | | Agustín Magaldi, Pedro Noda | spa | 1929--1933 | 02:44 | 1 | info |
| Ojos de canela | T0350124558 | vals | | Jorge Durán, Roberto Florio | spa | | | 1 | info |
| Ojos matreros | | tango | Osvaldo Fresedo | Antonio Buglione | spa | 1928-09-02 | 03:13 | 1 | info |
| Ojos maulas | T0370021763 | tango | Ángel Domingo Riverol, Domingo Julio Vivas, Guillermo Barbieri | Carlos Gardel | spa | 1931-10-27 | 02:33 | 5 | info |
| Ojos maulas | T0370021763 | tango | Osvaldo Pugliese | Roberto Chanel | spa | 1947-01-28 | 02:50 | 14 | info |
| Ojos muertos (Ojos tristes) | T0370021821 | tango | Osvaldo Fresedo | Roberto Ray | spa | 1938-11-23 | 02:37 | 4 | info |
| Ojos negros | | tango | | Alberto Gómez | spa | | | 1 | info |
| Ojos negros | T0370021796 | tango | Alberto Mancione | Jorge Ledesma | spa | 1951-05-24 | 03:28 | 4 | info |
| Ojos negros | | canción rusa | -unspecified orchestra- | Alberto Vila, Alberto Gómez | spa | | | 1 | info |
| Ojos negros que fascinan | Z0999900157 | tango | Francisco Canaro | Roberto Maida | spa | 1935 | 02:48 | 1 | info |
| Ojos negros que fascinan | Z0999900157 | tango | Francisco Canaro | Roberto Maida | spa | 1935-04-25 | 02:50 | 6 | info |
| Ojos que lloran | T0370021810 | vals | Roberto Firpo | Carlos A. Varela | spa | 1930-04-16 | 02:46 | 2 | info |
| Ojos tristes | | tango | | Oscar Nelson | spa | 1946 | 02:39 | 1 | info |
| Ojos tristes | Ojos muertos | T0370021821 | tango | | Alberto Marino | spa | 1958--1960 | 02:42 | 1 | info |
| Ojos tristes | Ojos muertos | T0370021821 | tango | Astor Piazzolla | Héctor Insúa | spa | 1947-01-02 | 03:13 | 10 | info |
| Ojos verdes | | vals | Francisco Canaro | Carlos Roldán | spa | 1943-05-26 | 03:22 | 1 | info |
| Ojos verdes | T0370021832 | vals | Francisco Canaro | Francisco Amor | spa | 1939-05-08 | 02:37 | 4 | info |
| Ojos verdes | | vals | Francisco Lomuto | Alberto Rivera | spa | 1943-06-29 | 02:27 | 2 | info |
| Olga | T0370021854 | vals | Rafael Rossi | -unspecified male- | spa | | 03:27 | 1 | info |
| Olimpia | | tango | Francisco Canaro | Ernesto Famá | spa | 1939-09-14 | 02:22 | 1 | info |
| Olvidao | T0370021876 | tango | | Edmundo Rivero | spa | | 02:27 | 3 | info |
| Olvidao | T0370021876 | tango | Adolfo Carabelli | Charlo | spa | 1932-03-18 | 02:58 | 9 | info |
| Olvidao | T0370021876 | tango | Enrique Francini, Armando Pontier | Julio Sosa | spa | 1953-02-27 | 03:26 | 9 | info |
| Olvidao | T0370021876 | tango | Juan D'Arienzo | Alberto Reynal | spa | 1941-07-29 | 02:42 | 8 | info |
| Olvidao | T0370021876 | tango | Osvaldo Pugliese | Juan Carlos Cobos | spa | 1953-08-06 | 03:01 | 3 | info |
| Olvidao | T0370021876 | tango | -unspecified guitars- | Charlo | spa | 1932-03-21 | 02:41 | 2 | info |
| Olvidao | T0370021876 | tango | -unspecified guitars- | Edmundo Rivero | spa | | 02:24 | 4 | info |
| Olvidemos el color | T0464681706 | candombe | Ángel F. Condercuri | Alberto Castillo | spa | 1965 | 02:24 | 2 | info |
| Olvidemos todo | T0370650342 | tango | Juan D'Arienzo | Jorge Valdez | spa | 1963-09-16 | 02:57 | 1 | info |
| Olvido | Z0000002340 | tango | | Roberto Goyeneche | spa | | 02:46 | 2 | info |
| Olvido | Z0000002340 | tango | Armando Pontier | Roberto Goyeneche | spa | | 02:45 | 4 | info |
| Olvido | Z0000002340 | tango | Armando Pontier | Roberto Goyeneche | spa | 1968-09-23 | 02:41 | 1 | info |
| Olvido | Z0000002340 | tango | Francisco Canaro | Charlo | spa | 1935-12-31 | 02:43 | 7 | info |
| Olvido | Z0000002340 | tango | Francisco Canaro | Roberto Maida | spa | 1936-03-18 | 02:36 | 1 | info |
| Olvido | Z0999900025 | tango | Horacio Pettorossi | -unspecified male- | spa | 1931 | 02:22 | 4 | info |
| Olvídala | T0370153200 | tango | Eduardo Bianco | Federico Linae | spa | 1935 | 02:57 | 1 | info |
| Olvídala | T0370153200 | tango | Eduardo Bianco | -unspecified male- | spa | 1935 | 03:00 | 1 | info |
| Olvídame | T0370021865 | tango | Francisco Canaro | Roberto Maida | spa | 1938-11-18 | 02:40 | 4 | info |
| Olvídame | T0370021865 | tango | Juan D'Arienzo | Alberto Echagüe | spa | 1939-05-30 | 02:25 | 8 | info |
| Olvídame | T0370021865 | tango | Rafael Canaro | Luis Mariano | spa | | 02:40 | 1 | info |
| Olvídame | T0370021865 | tango | Rafael Canaro | Luis Mariano | spa | 1937 | | 1 | info |
| Olvídame | T0370021865 | tango | Rafael Canaro | Luis Mariano | spa | 1939 | | 1 | info |
| Olé! Buenos Aires | | paso doble | Adolfo Carabelli | Charlo | spa | 1932-03-29 | 03:08 | 1 | info |
| Opa opa | Z0000001518 | ? | | Jorge Sareli | spa | | 03:04 | 1 | info |
| Operate el trigemino | T0374628155 | tango | Minotti Di Cicco | Antonio Buglione | spa | 1930 | 03:00 | 3 | info |
| Oracion a la propaganda | Z0000339603 | ? | | Susana Rinaldi | spa | | 02:54 | 1 | info |
| Oración | T0370039216 | tango | | Agustín Magaldi | spa | 1933-10-03 | 03:24 | 1 | info |
| Oración | T0370039216 | canción | | Agustín Magaldi, Pedro Noda | spa | 1933-10-03 | | 1 | info |
| Oración | Z0999900989 | tango | Francisco Lomuto | Jorge Omar | spa | 1935-07-04 | 02:35 | 4 | info |
| Oración | T9007599646 | tango | Bachicha | Emilia García | spa | 1930 | 03:23 | 2 | info |
| Oración | T9007599646 | tango | Bachicha | Emilia García | spa | 1930-05 | 03:23 | 2 | info |
| Oración | T9007599646 | tango | Bachicha | Teresita Asprella | spa | 1930 | 03:23 | 2 | info |
| Oración | | vals | Rafael Canaro | Carlos Dante | spa | 1930 | 03:08 | 1 | info |
| Oración | T0370039216 | ? | -unspecified guitars- | Agustín Magaldi, Pedro Noda | spa | 1933-10-03 | 03:25 | 2 | info |
| Oración a la justicia | T0371091870 | ? | | Susana Rinaldi | spa | | 02:53 | 2 | info |
| Oración campera | T0464002650 | zamba | -unspecified guitars- | Agustín Magaldi, Pedro Noda | spa | | | 1 | info |
| Oración criolla | T0370212240 | tango | | Hernán Salinas | spa | 1977-05-09 | 03:50 | 1 | info |
| Oración peruana | | tango | | | spa | 1956-06-01 | 03:21 | 1 | info |
| Oración rante | Z0000095596 | tango | | Edmundo Rivero | spa | 1954 | 02:14 | 1 | info |
| Oración rante | Z0000095596 | tango | Alfredo De Angelis | Oscar Larroca | spa | 1954-06-23 | 02:54 | 1 | info |
| Oración rante | Z0000095596 | tango | Armando Lacava | Ángel Vargas | spa | 1954-04-23 | 02:58 | 7 | info |
| Oración rante | Z0000095596 | tango | Roberto Caló | Enrique Campos | spa | 1953 | 03:14 | 1 | info |
| Oración rante | Z0000095596 | tango | Roberto Chanel | Roberto Chanel | spa | 1954-06-21 | 02:47 | 1 | info |
| Oración rante | Z0000095596 | tango | Ismael Spitalnik | Aldo Calderón | spa | 1954-05-04 | 02:48 | 1 | info |
| Oración rante | Z0000095596 | tango | José Sala | Carlos Yanel | spa | | | 1 | info |
| Oración rante | Z0000095596 | tango | José Sala | Carlos Yanel | spa | 1953--1954 | 02:52 | 1 | info |
| Oración rante | Z0000095596 | tango | José Sala | Carlos Yanel | spa | 1954 | 02:55 | 1 | info |
| Oración rante | Z0000095596 | tango | Miguel Caló | Alberto Podestá | spa | 1954-03-05 | 03:07 | 3 | info |
| Oración rante | Z0000095596 | tango | -unspecified guitars- | Edmundo Rivero | spa | | | 1 | info |
| Oración rante | Z0000095596 | tango | -unspecified guitars- | Jorge Vidal | spa | | 02:23 | 3 | info |
| Organillero | | marcha | Edgardo Donato | Horacio Lagos | spa | 1941-06-11 | 03:03 | 2 | info |
| Organito | | ? | | Cristóbal Repetto | spa | | 02:55 | 1 | info |
| Organito | Z0999901107 | tango | Enrique Delfino, Manuel Parada | Azucena Maizani | spa | 1927 | 03:03 | 1 | info |
| Organito | Z0999901107 | tango | Enrique Delfino, Manuel Parada | Azucena Maizani | spa | 1927-12-09 | 03:05 | 1 | info |
| Organito callejero | Z0002352444 | tango | Orquesta Típica Victor | Francisco Fiorentino | spa | 1931-07-07 | 02:50 | 9 | info |
| Organito de la tarde | T0370021978 | tango | | Libertad Lamarque | spa | | | 1 | info |
| Organito de la tarde | T0370021978 | tango | | Susana Rinaldi | spa | | 02:30 | 2 | info |
| Organito de la tarde | T0370021978 | tango | | Alberto Marino | spa | | 02:51 | 1 | info |
| Organito de la tarde | T0370021978 | tango | Emilio Balcarce | Alberto Marino | spa | 1947-04-09 | 02:52 | 6 | info |
| Organito de la tarde | T0370021978 | tango | Florindo Sassone | Andrés Peyró | spa | 1959-10-08 | 03:07 | 2 | info |
| Organito de la tarde | T0370021978 | tango | Francisco Canaro | Azucena Maizani | spa | 1925 | 03:25 | 3 | info |
| Organito de la tarde | T0370021978 | tango | Francisco Canaro | Azucena Maizani | spa | 1925-05 | 03:19 | 1 | info |
| Organito de la tarde | T0370021978 | tango | Gabriel Clausi | Chito Faró | spa | 1946 | 03:05 | 1 | info |
| Organito de la tarde | T0370021978 | tango | Guillermo Barbieri, José Ricardo | Carlos Gardel | spa | 1925 | 03:10 | 6 | info |
| Organito de la tarde | T0370021978 | tango | Leo Lipesker | Roberto Rufino | spa | 1959-02-05 | 02:46 | 1 | info |
| Organito de la tarde | T0370021978 | tango | -unspecified guitars- | Alberto Gómez | spa | 1900--1969 | 02:31 | 1 | info |
| Organito de la tarde | T0370021978 | tango | -unspecified orchestra- | Nelly Omar | spa | 1945 | 04:34 | 1 | info |
| Organito de la tarde | T0370021978 | tango | | Alberto Marino | spa | | 02:49 | 1 | info |
| Organito del amor | T0370504214 | milonga | Fulvio Salamanca | Carlos Nogués | spa | 1964 | 03:56 | 2 | info |
| Organito del suburbio | T0370131035 | tango | Juan Félix Maglio | Roberto Basso | spa | 1929-05-22 | 03:00 | 1 | info |
| Organito del suburbio | T0370131035 | tango | Juan Félix Maglio | Roberto Basso | spa | 1929-06-03 | 03:05 | 8 | info |
| Organito del suburbio | T0370131035 | tango | Roberto Firpo | Teófilo Ibáñez | spa | 1929-06-26 | 03:04 | 3 | info |
| Organito del suburbio | T0370131035 | tango | Roberto Firpo | Teófilo Ibáñez | spa | 1929-10-26 | 02:59 | 1 | info |
| Orgullo puntano | | zamba | -unspecified guitars- | Alberto Vila, Alberto Gómez | spa | | | 1 | info |
| Orgullo tanguero | T0370469650 | tango | | Alberto Gómez | spa | | 02:12 | 2 | info |
| Orgullo tanguero | T0370469650 | tango | Alfredo De Angelis | Lalo Martel | spa | 1959-08-18 | 03:09 | 2 | info |
| Orgullo tanguero | T0370469650 | tango | Leo Lipesker | Roberto Rufino | spa | 1959-08-20 | 02:42 | 1 | info |
| Orgullo tanguero | T0370469650 | tango | Luis Stazo | Julián Centeya | spa | 1972-07-12 | 02:54 | 1 | info |
| Orgullo tanguero | T0370469650 | tango | Luis Stazo | Ángel Vargas | spa | | 02:45 | 1 | info |
| Orgullo tanguero | | tango | Luis Stazo | Ángel Vargas | spa | 1959 | 02:39 | 1 | info |
| Orgullo tanguero | T0370469650 | tango | Jorge Dragone | Argentino Ledesma | spa | | 02:52 | 4 | info |
| Orgullo tanguero | T0370469650 | tango | Pedro Maffia | Alberto Gómez | spa | 1959--1960 | 03:08 | 1 | info |
| Orgullo tanguero | T0370469650 | ? | -unspecified guitars- | Alberto Gómez | spa | 1900--1969 | 02:08 | 1 | info |
| Oriente | T0370214359 | tango | Juan Sánchez Gorio | Luis Mendoza | spa | | | 1 | info |
| Oriente | T0370214359 | tango | Juan Sánchez Gorio | Luis Mendoza | spa | 1944-08-18 | 03:27 | 4 | info |
| Oriente | T0370214359 | tango | Juan Sánchez Gorio | Luis Mendoza | spa | 1952 | 03:22 | 4 | info |
| Oriente | T0370214359 | tango | Lucio Demare | Horacio Quintana | spa | 1944-10-11 | 03:09 | 8 | info |
| Origami | | ? | | -unspecified female- | spa | | 03:45 | 1 | info |
| Orilla | | milonga | | Rubén Maciel, Rubén Sánchez | spa | 1960 | 02:04 | 1 | info |
| Orillando un cañadón | | canción | -unspecified guitars- | Charlo | spa | 1937-06-02 | 03:14 | 1 | info |
| Orillas del plata | T0370022017 | vals | Juan Félix Maglio | Carlos Viván | spa | 1930-03-15 | 03:11 | 1 | info |
| Orlando Goñi | T0370057650 | tango | | Ricardo Olivera | spa | 2009 | 02:58 | 1 | info |
| Oro | T0370407605 | ? | Juan Sánchez Gorio | Luis Mendoza | spa | 1957-04-01 | | 1 | info |
| Oro de ley | T0370221730 | milonga | Juan D'Arienzo | Alberto Echagüe | spa | 1944-12-15 | 02:14 | 9 | info |
| Oro falso | T0370242059 | tango | Astor Piazzolla | Francisco Fiorentino | spa | 1945-11-23 | 03:23 | 10 | info |
| Oro muerto | T0370153222 | tango | Eduardo Bianco, Bachicha | Juan Raggi | spa | 1926 | 03:28 | 2 | info |
| Oro muerto | T0370153222 | tango | Guillermo Barbieri, José Ricardo | Carlos Gardel | spa | 1926 | 02:47 | 6 | info |
| Oro muerto | Jirón porteño | T0370153222 | tango | Eduardo Bianco, Bachicha | Juan Raggi | spa | 1926 | 03:25 | 5 | info |
| Oro viejo | T0464004441 | vals | Francisco Canaro | Charlo | spa | 1931-03-27 | 03:06 | 1 | info |
| Oro y diamantes | T0370484460 | tango | | Héctor Mauré | spa | | 02:41 | 2 | info |
| Oro y diamantes | T0370484460 | tango | Juan D'Arienzo | Osvaldo Ramos | spa | 1970-08-13 | 02:55 | 2 | info |
| Oro y gris | T0370876666 | tango | Mariano Mores | Ginamaría Hidalgo | spa | | | 1 | info |
| Oro y plata | T0370065681 | milonga | | Charlo | spa | | 02:47 | 1 | info |
| Oro y plata | T0370065681 | candombe | | -unspecified female- | spa | | 03:16 | 2 | info |
| Oro y plata | T0370065681 | candombe | Julián Plaza | Susana Rinaldi | spa | | 02:54 | 6 | info |
| Oro y plata | T0370065681 | milonga | -unspecified orchestra- | Charlo | spa | 1951-12-18 | 02:46 | 4 | info |
| Oro y seda | T0370187271 | tango | Guillermo Barbieri, José Ricardo | Carlos Gardel | spa | 1925 | | 3 | info |
| Oro y seda | T0370187271 | tango | Osvaldo Fresedo | Ada Falcón | spa | 1925 | | 1 | info |
| Oro, copa, espada y basto | T0370357199 | tango | -unspecified guitars- | Agustín Magaldi | spa | 1935-10-31 | 03:23 | 5 | info |
| Orquesta de señoritas | T0371238300 | ? | | Susana Rinaldi | spa | | 03:51 | 2 | info |
| Orquesta típica | Z0000059171 | tango | Juan D'Arienzo | Alberto Reynal | spa | 1941-10-24 | 02:30 | 7 | info |
| Orquestas de mi ciudad | T0370206215 | tango | Aníbal Troilo | Francisco Fiorentino | spa | 1943-12-17 | 03:18 | 13 | info |
| Orquestas de mi ciudad | T0370206215 | tango | Miguel Caló | Raúl Iriarte | spa | 1944-01-28 | 02:53 | 5 | info |
| Orquestas de mi ciudad | T0370206215 | tango | -unspecified orchestra- | Alberto Podestá | spa | 1955 | 02:00 | 1 | info |
| Orquídeas a la luz de la luna | T0701596102 | tango | Francisco Canaro | Ernesto Famá | spa | 1934-06-07 | 03:23 | 3 | info |
| Os beso la mano madame | T8020475724 | tango | Luis Petrucelli | Roberto Díaz | spa | 1929-10-16 | 03:26 | 5 | info |
| Os beso la mano madame | | fox trot | -unspecified orchestra- | Roberto Díaz | spa | 1929 | 02:53 | 1 | info |
| Os beso la mano, madame | T8020475724 | fox trot | | Agustín Magaldi | spa | 1929 | | 1 | info |
| Os beso la mano, madame | T8020475724 | fox trot | -unspecified orchestra- | Roberto Díaz | spa | | | 1 | info |
| Osaka | Z0999901764 | shimmy | Francisco Canaro | Ada Falcón | spa | 1929-11-29 | 02:52 | 2 | info |
| Otario | | electro | | -unspecified female- | spa | | 03:08 | 1 | info |
| Otario que andás penando | T0370022028 | tango | Domingo Federico | Armando Moreno | spa | 1954-04-07 | 02:59 | 2 | info |
| Otario que andás penando | T0370022028 | tango | Francisco Canaro | Charlo | spa | 1931-11-04 | 03:17 | 4 | info |
| Otario que andás penando | T0370022028 | tango | Leopoldo Federico | Julio Sosa | spa | 1963-02-22 | 02:26 | 4 | info |
| Otario que andás penando | T0370022028 | tango | | Carlos Gardel | spa | 1932-07-22 | 02:08 | 6 | info |
| Otario! | Z0999901338 | tango | Juan Félix Maglio | Carlos Viván | spa | 1928 | 03:04 | 1 | info |
| Otoño porteño | | ? | Quinteto Astor Piazzolla | | spa | | | 1 | info |
| Otra copa y se acabó | T0370075312 | tango | Francisco Canaro | Charlo | spa | 1928-08-03 | 02:58 | 2 | info |
| Otra cosa es con jalea | | ranchera | Antonio Cerviño | Antonio Cerviño, Sombra Deval | spa | | | 1 | info |
| Otra esquina | T0420884725 | electro | Otros Aires | -unspecified male- | spa | | 04:29 | 1 | info |
| Otra noche | T0370214371 | tango | | Mercedes Simone | spa | 1937 | | 1 | info |
| Otra noche | T0370214371 | tango | | Alberto Gómez | spa | 1929--1944 | 03:25 | 1 | info |
| Otra noche | T0370214371 | tango | | Alberto Gómez | spa | | | 1 | info |
| Otra noche | T0370214371 | tango | Carlos Di Sarli | Alberto Podestá | spa | 1944-04-13 | 02:41 | 6 | info |
| Otra noche | T0370214371 | tango | Emilio Balcarce | Alberto Castillo | spa | 1944-08-08 | 03:08 | 7 | info |
| Otra noche | T0370214371 | tango | Francisco Canaro | Carlos Roldán | spa | 1944-02-16 | 02:35 | 3 | info |
| Otra noche | T0370214371 | tango | Juan Carlos Cambón | Mercedes Simone | spa | | 02:57 | 1 | info |
| Otra noche | T0370214371 | tango | Juan Carlos Cambón | Mercedes Simone | spa | 1944 | 02:57 | 2 | info |
| Otra noche | T0370214371 | tango | Jorge Dragone | | spa | | 02:52 | 1 | info |
| Otra noche | T0370214371 | tango | Armando Cupo | Miguel Montero | spa | | 02:25 | 2 | info |
| Otra noche | T0370214371 | tango | -unspecified orchestra- | Tania | spa | 1944-03-24 | 02:51 | 2 | info |
| Otra noche | T0370214371 | tango | -unspecified orchestra- | Mercedes Simone | spa | 1928--1942 | 02:54 | 1 | info |
| Otra noche en "La Viruta" | T0421648249 | electro | Otros Aires | -unspecified male- | spa | | 04:14 | 1 | info |
| Otra vez | T0370022040 | tango | Francisco Lomuto | Jorge Omar | spa | 1938-06-09 | 02:40 | 6 | info |
| Otra vez | | ? | Juan Carlos Cáceres | Juan Carlos Cáceres | spa | | 03:54 | 1 | info |
| Otra vez Buenos Aires | T0370989460 | tango | | Jorge Maciel | spa | 1969-10-21 | 03:09 | 2 | info |
| Otra vez Esthercita | T0370960749 | tango | Aníbal Troilo | Roberto Goyeneche | spa | 1968-12-04 | 02:50 | 4 | info |
| Otra vez María | T0370444544 | vals | Orquesta Típica Porteña | Roberto Goyeneche | spa | 1976-07-14 | 04:01 | 1 | info |
| Otra vez carnaval | T0370115324 | tango | Carlos Di Sarli | Jorge Durán | spa | 1947-01-14 | 02:51 | 8 | info |
| Otra vez carnaval | T0370115324 | tango | Orquesta Típica Porteña | Roberto Goyeneche | spa | | 02:48 | 1 | info |
| Otra vez carnaval | noche de carnaval | T0370115324 | tango | Orquesta Típica Porteña | Roberto Goyeneche | spa | 1981-08-12 | 02:51 | 1 | info |
| Otra vez el viejo | Z0999901918 | tango | Francisco Canaro | Charlo | spa | 1928-03-14 | 02:53 | 2 | info |
| Otro Puente Alsina | T0420884703 | electro | Otros Aires | -unspecified female- | spa | | 03:15 | 1 | info |
| Otro amor ha de llegar | T0370131126 | tango | Julio De Caro | Héctor Farrel | spa | 1940 | 02:28 | 2 | info |
| Otro regreso | T0370407638 | tango | Orquesta Puglia-Pedroza | Oscar Nelson | spa | | 02:39 | 1 | info |
| Otro ángel para el cielo | T0370398814 | tango | Ricardo Tanturi | Alberto Guzmán | spa | 1959-01-29 | 03:02 | 2 | info |
| Otros tiempos y otros hombres | T0370245332 | tango | | Francisco Fiorentino | spa | | 02:42 | 2 | info |
| Otros tiempos y otros hombres | T0370245332 | tango | Astor Piazzolla | Francisco Fiorentino | spa | 1946-05-21 | 02:46 | 11 | info |
| Ovejitas blancas | | ? | | René Varela | spa | 1953 | | 1 | info |
| Oyeme mamá | T0370290086 | tango | Edgardo Donato | Carlos Almada | spa | 1952-07-25 | 03:19 | 1 | info |
| Oyendo tu voz | T0370189380 | tango | Rodolfo Biagi | Jorge Ortiz | spa | 1942-08-28 | 02:32 | 4 | info |
| Oíd el vals (Tu diagnósitco) | | vals | Adolfo Carabelli | Charlo | spa | 1933-06-20 | 03:09 | 1 | info |
| Oíme negro | T0370149282 | tango | Luis Petrucelli | Roberto Díaz | spa | 1928-12-13 | 03:09 | 4 | info |
| Oíme negro | T0370149282 | tango | -unspecified guitars- | Rosita Quiroga | spa | 1928-08-07 | 03:11 | 9 | info |
