According to the liner notes in Bonne Humeur, Lionel "Lanky" Belasco was probably born in Caracas, Venezuela in about 1882 and grew up in Venezuela and Trinidad. He was classically trained, but preferred playing indigenous music.
He formed a string band which played Venezuelan waltzes, joropos, paseos and danzas, many of which he composed himself. Carnaval En Margarita is a paseo that Belasco wrote. Margarita is an island off the Venezuelan coast which Belasco visited.
More to come soon! Maybe even a rag or two.