The business sucess of the Argentine Tango posed a threat to the American record and film companies following the Great Depression. An all out attack was launched to sell the entertainment products coming from the North to a new generation of Argentinos, and one of the main ingredients of the strategy was to destroy the Tango as a favorite pastime for many residents of Buenos Aires. The untimely death of Gardel in 1935 supported an orchestrated marketing campaign that resulted in the now legendary headline published in one of Buenos Aires dailies: "The Tango is dead." That was going to prove to be a major blunder.
A friend recently wrote from
 Buenos Aires to remind me that
 history is written by the winners, and that Americans and British tend to look at the world from a winner's position and sometimes assume ownership of things that don't belong to them. I'm not sure what to make of that. He may be hooked up to the Internet. However I agree when he added that the Tango, being Argentine like the Pampas and the ombu, can tell its own history from a vantage viewpoint.
Even so, there are aspects of Tango history which are biased depending on the agenda of those in a position to influence public opinion. Horacio Ferrer, president of the National Academy of Tango has writtten in his History of the Tango book: In 1935 Rodolfo Biagi joined the orchestra of Juan D'Arienzo, contributing with his nervous pianist modality, elementary harmonically, monotonous in the rhythmic because of the invariable repetition of the same musical ideas, to define the interpretative style of the combo.
The dancing section of the Tango establishment knows not to trust those yielding power solely by the nature of their political or social affiliations, but many outsiders (metaphorically and geographically speking) tend to repeat (and believe) as words from some sacred gospel the obvious put down that elitist Ferrer dishes out to one of the musicians responsible for changing forever the history and fate of the Tango music in the 1940's.
Further, dancers became a motivational force with a strong say in influencing the way Tango music for dancing should sound.
Rodolfo Biagi played a very important part in the history of Tango, particularly in regards to the renaissance of the dancing craze that has become to be known as the Golden Era of Tango. A pianist, Biagi seems to have been unjustly forgotten or maybe shortchanged when it comes to highlighting names in the gallery of Tango's greatest figures.
Perhaps the birth of the Golden Era of the Tango was an unexpected stab of fate. Uruguayan composer Pintin Castellanos brought a new Tango to orchestra director Juan D'Arienzo for his consideration. Members of the orchestra suggested that the piece would be more suitable as a milonga, so they rearranged it and one evening of 1935 they played it for the first time from the studios of LR1 Radio El Mundo. The vibrant sound of the milonga was accentuated by the unmistakable presence of the piano striking rhythm and melody through the hands of the recent addition to the Juan D'Arienzo orchestra, twenty-nine year old Rodolfo Biagi. La puñalada (The Stab) became an instant hit, and the sound of D'Arienzo with Biagi at piano caught the imagination of an entire generation of listeners, who soon began to flock to the neighborhood clubs to dance to the compeling beat of the almost forgotten two by four Tango of the early 1900s, revived and polished by the diabolical arrangements of D'Arienzo and Biagi's elementary harmonically, monotonous rhythm of invariable repetition of the same musical ideas
With an undeniable talent and a spirit characteristic of the natives of the city of Buenos Aires, Rodolfo Biagi injected a much needed, and later to become a well-known and fruitful change, in the music of Buenos Aires. The enormous success of the orchestra of Juan D'Arienzo during the 1936 Carnaval season, with its strong and accelerated emphasis of the forgotten 2x4 rhythm  led to a decade of extraordinary activity among musicians, singers and dancers between 1935 and the late fifties. The energetic and original treatment of the piano by Rodolfo Biagi set new standards for that instrument, and forced the rest of the orchestras to vary their styles, and many pianists assimilated the influence of the new rhythm in vogue.
Heading into 1940, the Tango had perhaps its most fruitful period. It actually started with Biagi joining D'Arienzo in 1935. Soon other orchestras abandoned the romantic (and at times dense) style characteristic of the late twenties and early thirties. They opted for a playing a style more upbeat to please the increasing demand by the dancers. The Tango scene became brilliant, the quality of the musicians shot upwards, and the personality of the singers blended with the new musical structures that responded to the needs of the dancing public. Concurrently, Buenos Aires underwent a significant transformation anticipating the Peronist regime that would come to power in 1945. The deteriorating conditions of the farmlands, and the industrialization of the capital city driven by the need to replace imported goods, provoked a massive emigration of people from the provinces to the Buenos Aires. The working class underwent a process of national restructuring that included the embracing of a nationalistic cultural pride. Coinciding with World War II, and the weakening of the cultural influences of the imperialists nations, a national cultural industry grows quickly aided by a massive development of the media. Movies, radio and the dance halls contributed to the renaissance of the Tango and the onset of its Golden Era.
People can't control, choose nor decide where and when they will be born. These circumstances, particularly at the beginning of the twentieth century in Buenos Aires, would  unfortunately mark negatively the future of many talented people. Such was the case of Rodolfo Biagi, born in the working class district of San Telmo on the 14th of March, 1906, into a the bosom of a humble family. The desire of immigrant parents to forge a future for their sons and daughters through education played an important role in the decision to enroll young Rodolfo as a non-paying student at a conservatory. By the time he turned thirteen, Biagi had graduated from the Conservatory of La Prensa, where he had been coached to be a concert violinist, but in the course of his studies converted to piano. At the suggestion of one of his teachers he continued to widen his knowledge at the Conservatory of the Anglican Church, while he earned his first money as a pianist in one of the many movie houses featuring silent movies.
There he discovered the legendary Juan Maglio "Pacho", and at barely fifteen years of age was invited by Maglio to play in his orchestra.. The setting could not have been more auspicious, no less than the cafe El Nacional on Corrientes Street, the Olympus for fans of the Tango. From that moment in time Rodolfo Biagi had to combine his performances with "Pacho", his performances on Radio Cultura and studies of teaching methods at the Mariano Acosta college. On parting with Maglio, he joined Miguel Orlando's formation at the Maipu Pigall cabaret, and in that place he discovered Carlos Gardel, who was a habitual client of that establishment, and Gardel proposed that he accompany him on some recordings together with his guitarists Guillermo Barbieri, Jose Maria Aguilar and Domingo Riverol, plus violinist Antonio Rodio, these recordings taking place on the first of April, 1930. The order of titles waxed was as follows: the Tango Buenos Aires, the fox-trot Yo naci para ti, tu seras para mi, the waltz Aromas de Cairo, and the Tangos Aquellas farras and Viejo smoking. After this recording experience, Carlos Gardel offered him a trip to Europe as his accompanist, But Rodolfo Biagi chose to remain in Buenos Aires.
At the beginning of the thirties we find Biagi at the piano of accordion player Bautista Guido's sextet and in 1935 he was with Juan Canaro's orchestra with which a successful tour of Brazil was made, and in Buenos Aires they enlivened the shows at the Teatro Cine Paris which were broadcast over LS9 The Voice of the Air. With Canaro he commenced to develop his personal style, a style which reached its zenith in 1935, a time of crisis for the Tango, and when Biagi was contracted by Juan D'Arienzo to take the place left vacant by Luis Visca. At this point we ought to go back to the first few lines of this essay... The socio-economic and political situation of the country had brought the Tango and its people to a crossroad difficult to resolve, many orchestras being dissolved for want of places to play in as much as for the invasion of strange foreign rhythms propitiated by the ruling classes of the nation "supported" by a docile middle class; and in this desolate ambience for the popular music of Buenos Aires a miracle aroused at the hands of Rodolfo Biagi. The tandem D'Arienzo-Biagi propelled the movement which produced the rediscovery by the people of their music, the pianist fully coinciding with the aesthetic postulates of the leader, postulates that some bright commentator at the time qualified as simplistic to fateful for the Tango's future. But it was the people who are the real depository of culture which pertains to it and things were finally put in their rightful place, the public responding with its multitudinous presence at the performances of D'Arienzo with Biagi. A new rhythmic line was imposed that was rapidly adopted by other orchestras and a new generation was born which brought about a great resurgence in the forties decade. Rodolfo Biagi was with Juan D'Arienzo until 1938, the year he formed his own orchestra.