Ephemera by Unsound Perfumes The Ephemera by Unsound catalogue has 3 fragrances. Most common accords: amber, woody, fresh spicy and fresh. Most popular Ephemera by Unsound fragrances Ephemera by Unsound Noise (2015) Ephemera by Unsound Bass (2015) Ephemera by Unsound Drone (2015) Main accords Amber Woody Fresh spicy Fresh Aldehydic Aromatic Perfumers who work with this house Geza Schoen