The original Concerto still exists in the same continuity as the Breeder Concertos, where she goes by "Concerto-000000" or "Concerto Zero" or just "Concerto" with no "Breeder" in front.

She retains her original proportions, as well as her prototype single-chamber microfactory. Breeder Concertos who know her tend to treat her like an adorable little sister even though she's older than all of them and might have also birthed a few of them.