Complex sentence: She continued her music studies in Geneva in 1923 where she earned a living playing in the Jazz Women ensemble at the Hotel Chamonix, the first jazz band made up entirely of women.
Split into simpler sentences: She continued her music studies in Geneva in 1923 where she participated in the Jazz Women ensemble at the Hotel Chamonix. She earned money by playing in hotels in the Alps, creating the first jazz band made up entirely of women.