the formation of this new samba ended up linking its musical production, from urban train lines, to the favelas and suburbs of Rio, such as Morro da Mangueira, and the suburban neighborhood of Osvaldo Cruz. Estácio's samba was distinguished from Cidade Nova's samba both in thematic aspects, as well as in the melody and rhythm. Made for the parades of the carnival blocs in the neighborhood, the samba do Estácio innovated with a faster tempo, longer notes and a cadence beyond the traditional palms. Another structural change resulting from this samba was the valorization of the "second part" of the compositions: instead of using the typical improvisation of the samba circles of the alto party or carnival parades, there was the consolidation of pre-established sequences, which would have a theme – for example, everyday problems – and the possibility of fitting everything within the standards of the phonograph recordings of 78 rpm at the time – something like three minutes on 10-inch discs. In comparison to the works of the first generation of Donga, Sinhô and company, the sambas produced by the Estácio group also stood out for a greater countermetricity, which can be evidenced in a testimony by Ismael Silva about the innovations introduced by him and his companions in the new urban samba in Rio: The intuitive onomatopoeia built by Ismael Silva tried to explain the rhythmic change operated by the sambistas of Estácio with the bum bum paticumbum pugurumdum of the surdo in marking the cadence of the samba, making it a more syncopated rhythm. It was, therefore, a break with the samba tan tantan tan tantan irradiated from the Bahian aunts meetings. Thus, at the end of the 1920s, the modern carioca samba had two distinct models: the primitive urban samba of Cidade Nova and the new syncopated samba of the Estácio group. However, while the Bahian community enjoyed a certain social legitimacy, including the protection of important personalities of Rio society who supported and frequented the musical circles of the "Pequena Africa", the new Estaciano sambistas suffered socio-cultural discrimination, including through police repression. A popular neighborhood with a large Black/mixed contingent , Estácio was one of the great strongholds of poor samba musicians situated between marginality and social integration, who ended up being stigmatized by the upper classes in Rio as "dangerous" rascals. Because of this infamous brand, the Estaciano samba suffered great social prejudice