see his production publicized – especially when he did not yet enjoy the same prestige acquired by the first generation samba composers – and also a way to make up for his own financial difficulties. For the buyer, it was the possibility to renew his repertoire, record more records and earn sales, and further consolidate his artistic career. Artists with good contact with record labels, the popular singers Francisco Alves and Mário Reis were adepts of this practicea, having acquired sambas from composers such as Cartola and Ismael Silva. Radio era and popularization of samba The 1930s in Brazilian music marked the rise of Estácio's samba as a musical genre to the detriment of maxixe-style samba. If the samba schools were crucial to delimit, publicize and legitimize the new Estaciano samba as the authentic expression of the Rio's urban samba, the radio also played a decisive role in popularizing it nationwide. Although broadcasting in Brazil was officially inaugurated in 1922, it was still an incipient and technical, experimental and restricted telecommunication medium. In the 1920s, Rio de Janeiro was home to only two short-range radio stations whose programming was basically limited to broadcast educational content or classical music. This panorama changed radically in the 1930s, with the political rise of Getúlio Vargas, who identified the media as a tool of public interest for economic, educational, cultural or political purposes, as well as for the national integration of the country. A 1932 Vargas decree regulating radio advertising was crucial to the commercial, professional and popular transformation of Brazilian broadcasting. With the authorization that ads could occupy 20% (and then 25%) of the programming, the radio became more attractive and safe for advertisers and – added to the increase in sales of radio sets in the period – transformed this telecommunication medium of its function once educational for an entertainment powerhouse. With the contribution of financial resources from advertising, the broadcasters began to invest in musical programming, turning the radio into the great popularizer of popular music in the Brazil – whether phonograph record or live recordings directly from the stations' auditoriums and studios. With samba as a great attraction, the radio gave space to the genre with the "sambas de carnaval", released for the carnival celebrations, and the "sambas de meio de ano" ("mid-year sambas"), launched throughout the year. This expansion of radio as a medium of mass communication enabled the