An automatic performance data editing and reproducing apparatus which can achieve harmony between a copyright holder of automatic performance data and users thereof. At least part of a plurality of pieces of part performance data stored in a storage device that stores automatic performance data comprising a plurality of pieces of part performance data and stores identifiers indicative of whether the part performance data is data of which reproduction is to be limited as attachment to at least part of the plurality of pieces of part performance data is read out and edited. The automatic performance data including the edited part performance data is reproduced. In the case where part performance data to be edited turns out to be data of which reproduction should be limited with reference to an identifier thereof, a condition for removing a limitation on the reproduction of the part performance data is generated and attached to the edited part performance data in editing the part performance data to be edited, and if the condition is satisfied, the limitation on the reproduction of the part performance data is removed to reproduce the part performance data.