Rehydration, originates from a broader concept of extended - fragile and sensitive, "soft" electronic instruments and elemental techniques of playing with them. The concept was initially inspired by J. Lovelocks and L. Margulis Gaia theory of bio-geological evolution, that proposes an extended view upon organisms, and their influence on the environment, embracing the nearly infinite reciprocities, between earth and it’s inhabitants. I found Gaian perspective upon organisms as an inspiring leap-point to reimagine electronic sound circuit design towards one that could interact with biotic and abiotic environment in it’s full functionality: exposed and vulnerable – soft circuits, that are controlled by biophysical environment as much as they are by a human.