Chaya Czernowin's "Hidden," released on November 24, 2017, under the Wergo label, is a profound and intricate exploration of sound and fragility. This album, spanning a duration of 1 hour and 10 minutes, features a single, sprawling composition divided into three etudes and a concluding piece, all centered around the delicate imagery of the maidenhair fern. Czernowin, known for her innovative and often challenging approach to composition, crafts a sonic landscape that is both intricate and deeply evocative. The etudes, titled "Adiantum Capillus-Veneris (Maidenhair Fern). Etudes in Fragility: I, II, and III," delve into themes of delicacy and resilience, showcasing Czernowin's mastery of texture and timbre. The concluding piece, "Hidden," adds a layer of mystery and introspection to the album. This work is a testament to Czernowin's ability to push the boundaries of contemporary classical music, offering a listening experience that is as intellectually stimulating as it is emotionally resonant.