In 1965, Paco de Luca recorded Buleria number 5, for a two-guitar album with his brother Ramn entitled El jochito y la flama (1966).  The album features traditional bulerias as well as the compositions of Paco and Ramn, including the 1940s bolero pasito in a slow version with a novel accompaniment of cajón (timbale), harmonica and guitar. Fueled by vitality, Ramn hit a chord that burst into flames yet controlled the flames. The album is considered a milestone in the history of the flamenco guitar. It caused a sensation at the time, and as flamenco guitarist and singer Vicente Amigo says, it was the definitive moment of the birth of the flamenco guitar.  In 1967, the double guitar became more and more popular and Paquito D'Rouca, one of the most important guitarist of this kind in Flamenco, explains that de Luca was deeply influenced in this period by the cajón and the guitarrón. 
de Luca became famous, both at home and abroad, for his duet performances with his brother Ramn, who became the flamenco guitarist of his own generation. While the traditional bulerias repertoire is predominantly performed by men, de Luca and Ramn are the only flamenco guitarists to perform bulerias with a guitarrón, the traditional double guitar. They were later joined by a cadre of other flamenco guitarists, including Pepe de Luca and Fosforito.
In 1959, Ricardo Alonso Artiles, one of the professors who invited de Luca to his private lessons, introduced him to Sabicas in the rear of a restaurant in Algeciras, Spain. Sabicas was sitting with his wife and baby son. The two flamenco guitarists began practicing together and de Luca quit school to continue to study with Sabicas. They soon became known for their emotional duets of bulerías. 7211a4ac4a