Some ocarina makers bypass these physical limitations by creating ocarinas that have two or three resonating chambers, each with their own windway and labium. There are two main systems that dictate how these additional chambers are tuned: the Asian system and the Pacchioni system. The Asian system maximizes range by beginning each chamber one semitone higher than the highest note of the previous chamber. The Pacchioni system instead focuses on smoothing the transition between chambers by overlapping their ranges slightly, thereby making it easier to play melodies that fall in that range.
