e was born in Buenos Aires, in the neighborhood of Saavedra. He began his piano studies at age five and, at nine, on request of his father Luis, he also studied bandoneon with Eladio Blanco who played in the Juan D'Arienzo orchestra. Finally, at age fifteen he graduated as professor of piano, theory, music reading and harmony.

His start as professional was on Radio Mitre in 1954 with his quartet in the radio show Club de Barrio. The group included Rubén Sosa (bandoneon), Roberto Abal (violin), Rodolfo Sirimarco (double bass) and Roberto (leadership and piano).

He as well played with the Trío Figueroa and used to accompany El Chato Roberto Flores, Alberto Margal and Julio Martel, among others.

In 1956 he had the chance of signing with Radio Argentina to appear at the radio station auditorium with his sextet on Sundays at 6 pm. On that occasion he was called «The youngest orchestra leader in Latin America».

One year later the agent Caferata introduced him to Raúl Berón who had just split with the Aníbal Troilo orchestra and offered them a tour. So and until the death of the vocalist they teamed up and the two artists became close friends.

On Berón’s request he shortened his last name and became Roberto Siri. In 1960 they split for a while because the singer had been invited to join an artistic embassy for a tour of Latin America. At that period Siri was hired as pianist of the group Los Cinco Rubíes.

In the 70s Berón asked him to put together a big orchestra. Then he summoned: Tomás Giannini (Cachito), Julio Pane, Ángel Condercuri, Héctor Silva and Héctor Castro (bandoneons); Aquiles Aguilar, Roberto Abal, Garcés and Eduardo Mataruco (violins) and Marchetto (double bass).

They made several tours throughout the country and appeared on television in the show Grandes valores del tango. His last stint with Berón was in the season 1981/1982 at the Confitería París in Mar del Plata. Soon thereafter, in July, Raúl Berón passed away.

In November 1982 he decided to form a juvenile orchestra with which he debutted in April the following year on Channel ATC in the TV program Domingos de todos. The orchestra was lined up as follows: Daniel Bufa, Walter Castro, Gilberto Pereira and Oscar Espeche (bandoneons); Diego Larendegui, Miguel Buchelter and Carlos Cosantini (violins) and Carlos Barrera Oro (bass) and the vocalists were Carlos Martínez and Roxana Fontán. Later he appeared in Grandes valores del tango in October and played every Wednesday.

In the subsequent years there was no musical program which had not invited the Orquesta Juvenil. At a time when there was no musicians’ renewal for the genre this aggregation meant the source from which players, that today are at the first level, sprang up: Marcelo Nisinam, Horacio Romo, Walter Castro, Gilberto Pereira, Daniel Bufa, Oscar Espeche, Roxana Fontán, Carlos Martínez, Andrés Ramos, Rubén Pagano, Héctor del Curto, Diego Larendegui, Fernado Diéguez.

He was awarded the Gardel de Oro at La Casa del Tango in 1986, along with Libertad Lamarque and Hugo Del Carril. He won the Premio Revelación at the Festival Internacional de Música Popular in 1989. And in 1992 he was awarded for his relevant performance at the Segundo Festival Perla de Paraná.

In 2005 he formed the group Los Muchachos de Antes which was a hit in records sales. The quartet included Waldo Fonseca (guitar), Inés Flores (violin), Eldo Fonseca (clarinet) and Siri (bandoneon).

Today he appears with his sextet, a group of young talented players: Sebastián Agüero and Matías Giannasio (bandoneons); Demián Sirotich (double bass), Inés Flores and Paula Salomón (violins), Siri (leader and piano) and Hugo Araujo and Pablo Ramos on vocals.

This excellent musician had undoubtedly to be included in the Hall of the great creators of our Todo Tango portal.