 After Reinhardt met violinist Stéphane Grappelli, they played together informally when they were not playing dance music with a small orchestra at the Hôtel Claridge in Paris during the summer of 1934.According to an account in a book by Michael Dregni, Grappelli played a chorus, then Reinhardt began to improvise.Sometimes they were accompanied on double bass by Louis Vola, the band's leader, and on rhythm guitar by Roger Chaput.