He was born on July 11th, 1914, the youngest son of Anibal Carmelo Troilo and Felisa Bagnolo. He had one brother, Marcos, also a bandoneon player, and one sister, Chochita, who died some time after her birth. At the age of 11  "Pichuco" (as his father called him) discovered his vocation as "bandoneon" player and after only 6 months of study with a teacher (Juan Amandolare) he was part of a quintet  where he played simple songs. His first "professional" appearance was animating silent films in the Petit Colon cinema. Between 1925 and 1930 he involved in some groups: in a trio with Miguel Nijenson and Domingo Sapia; in a quintet (as a director) in the palece Medrano cinema; in Alfredo Gobbi's orchestra and in the Juan Maglio "Pacho"'s orchestra as second "bandoneon": In 1930 he waswas incorporated to the sextet Vardano- Pugliese formed by Elvino Vardano and Alfredo Gobbi in violins; Osvaldo Pugliese in piano; Sebastian Alesso in contrabass and Miguel Jurado and Anibal Troilo in bandoneones. He also played in "Los Provincianos" (1931); The tipica Victor Orchestra (1931), The Julio De Caro's Symphonic Orchestra(1932), Elvino Vardano(1933); Angel D'agostino(1934); Juan D'Arienzo (1935), Cuarteto del 900 (1936) and Juan Carlos Cobian (1937). In 1937 Ciriaco Ortiz broke up his orchestra and Troilo called some of his former musicians to create his first orchestra. He made his debut on July 1st 1937 in "Maraba" cabaret with the following musicians: Reynaldo Nichele, Jose Stilman and Pedro Sopochnik in violins; Juan Facio in contrabass; Juan Rodriguez, Roberto Yanitelli and he himself in bandoneones and Francisco Fiorentino in vocals. After Gardel's death the orchestra singers only sang the songs´ chorus  till Troilo made the singers shine being an authentic orchestra. For this reason he always had very important singers: Francisco Fiorentino, Armando Mandarino, Alberto Marino, Floreal Ruiz, Edmundo Rivero, Aldo Calderon, Jorge Casal, Raul Beron, Carlos Olmedo, Pablo Lozano, Roberto Goyeneche, Angel Cardenas, Elba Beron, Roberto Rufino, Nelly Vazquez, Tito Reyes and Roberto Achaval. As a composer he wrote very important songs: "Barrio de Tango" ("Tango suburb") (Lyrics by Homero Manzi, 1942); "Garua" (Lyrics by Enrique Cadicamo, 1943); "Sur" ("South") (Lyrics by Homero Manzi, 1948); "Che bandoneon" (Lyrics by Homero Manzi, 1950); "Discepolin" (Lyrics by Homero Manzi, 1951); "Una Cancion" ("A Song") (Lyrics by Catulo Castillo, 1953); "La ultima curda" ("The last drink") (Lyrics by Catulo Castillo, 1953); "Mi Tango triste" (My sad Tango) (Lyrics by Jose Maria Contursi, 1953). With a long trayectory, a lot of contributions to the tango art and with all respect from the audience and the critics Anibal Troilo died on may 18th, 1975.