He used improvised solos, toques, congas, extra trumpets, percussion and pianos, although all these elements had been used previously ("Papauba", "Para bailar son montuno"). Beny Moré (known as El Bárbaro del Ritmo, "The Master of Rhythm") further evolved the genre, adding guaracha, bolero and mambo influences. He was perhaps the greatest sonero ("Castellano que bueno baila usted", "Vertiente Camaguey"); another important sonero was Roberto Faz. By the late 1940s, son had lost its controversiality even among conservative Cubans which made it even less appealing to Cubans. A development that led to the decrease in popularity of the original son occurred in the 1940s. The son grew more sophisticated as it was adopted by conjuntos, which displaced sextetos and septetos. This led to big bands replacing the conjuntos, which managed to keep its flavor despite elaborate arrangements. During the 1940s and 1950s, the tourism boom in Cuba and the popularity of jazz and American music in general fostered the development of big bands and combos on the island. These bands consisted of a relatively small horn section, piano, double bass, a full array of Cuban percussion instruments and a vocalist fronting the ensemble. Their polished sound and "cosmopolitan" – read "commercial" – repertoire captivated both Cuban and foreign audiences. The commercialism of this new music movement led Cuban nightclub owners to recognize the revenue potential of hosting these types of bands to attract the growing flow of tourists. Additionally, as a result of the increasing popularity of big band music and in an effort to increase revenues, the recording industry focused on producing newer types of music and essentially removing son from their music repertoires. These developments were a big blow to the prospects of son and its popularity amongst even Cubans. With the arrival of cha-cha-chá and mambo in the United States, son also became extremely popular. After the Cuban Revolution separated Cuba from the U.S., son, mambo and rumba, along with other forms of Afro-Cuban music contributed to the development of salsa music, initially in New York. The mass popularization of son music led to an increased valorization of Afro-Cuban street culture and of the artists who created it. It also opened the door for other music genres with Afro-Cuban roots to become popular in Cuba and throughout the world. Current state of the son At present, the traditional-style son is seldom heard but has been assimilated into other