“Sonata in C# minor, Op.64 for flute and piano” is a masterpiece that carries the charm of the late romantic style. Composer Mélanie Bonis wrote the piece in 1904 and dedicated it to her friend and well-known flautist Louis Fleury. The sonata combines lyrical passages with energetic elements and offers both flutists and pianists a space for interpretation that draws the listener into the beauty and depth of French music at the turn of the 19th and 20th centuries. This Urtext edition seeks to bring greater international attention to the work of this remarkable French composer. The piece is approximately 18 minutes in length and is suitable for intermediate and advanced flutists.