This style entered full swing in France with the Quintette du Hot Club de France, which began in 1934. Much of this French jazz was a combination of African-American jazz and the symphonic styles in which French musicians were well-trained; in this, it is easy to see the inspiration taken from Paul Whiteman since his style was also a fusion of the two. Belgian guitarist Django Reinhardt popularized gypsy jazz, a mix of 1930s American swing, French dance hall "musette", and Eastern European folk with a languid, seductive feel; the main instruments were steel stringed guitar, violin, and double bass. Solos pass from one player to another as guitar and bass form the rhythm section. Some researchers believe Eddie Lang and Joe Venuti pioneered the guitar-violin partnership characteristic of the genre, which was brought to France after they had been heard live or on Okeh Records in the late 1920s.