Unities is an important work by Portuguese jazz drummer and educator Zé Eduardo. Recorded in the mid-1980s when he was based in Barcelona, this album is indispensable for documenting the development of jazz in Catalonia. At the time, Zé Eduardo was a central figure at Taller de Músics, Barcelona's prestigious jazz educational institution, where he nurtured many young musicians and laid the foundation for the current Catalan music scene. This album is one of his early recordings with a stable group and includes early works by musicians who would later become prominent figures, such as Jordi Pardo and Marc Miralta. More than just an album, it is positioned as a valuable record—a relic—of Catalan jazz history.