Lyre. 11 connected concepts: Lyres of Ur (related to), Music of ancient Greece (related to), Tortoiseshell (related to), Barbiton (related to), String instrument (related to), Kithara (related to), Hornbostel–Sachs (related to), Homeric Hymns (related to), Apollo (related to), Hermes (related to), Theft of Apollo's cattle (related to).