Colin Self's Siblings is a proposal for interdependence, critical joy, and an expansive sense of being. As the lyrics beam, "I used to live as an anomaly... no explanation biologically," so siblings share hidden language, lore, and identity. On Siblings, ecstatic voices and sound knot to form new ideals of kinship, emerging as horizontal relations for multi-species flourishing. Colin Self challenges boundaries of perception with his art, music, and performances. Inspired by the work of Donna Haraway (Cyborg Manifesto, Staying with the Trouble: Making Kin in the Chthulucene), Siblings is the final segment of the six-part opera series entitled Elation. Informed by Self's exploration of the ways of knowing, Siblings places a non-biological family at its center. The characters, bonded by curiosity and caring, generate ways of collectively coming together on a damaged planet. Self uses Siblings to define this familial experience through sound and its soundmakers.