taken from field

The relative priority of the clip with respect to other clips. This value is used to determine which clips to remove when the maximum allowed number of clips is exceeded. The lower the priority, the more likely the clip is to be stopped and removed from the mixer channel it is occupying. Valid range is any integer; there are no constraints. The default priority is zero for all clips until changed. The number of simultaneous sounds that can be played is implementation- and possibly system-dependent.