Electronic performance device

An electronic performance device comprising:

• a storage mechanism configured to previously store waveform data per level of hit strength obtained at time of hitting a musical instrument;
• a hitting portion to be hit during a performance;
• a detection mechanism configured to detect a hit on the hitting portion during the performance and to transmit a detection signal, related to at least the hit strength at the time of hitting;
• and
• an output mechanism configured to output, the waveform data stored in the storage mechanism, and the waveform data corresponding to the hit strength indicated by the detection signal on condition of receiving the detection signal from the detection mechanism,
• the storage mechanism stores:
• basic waveform data corresponding to multiple levels of strength of the single hit on the musical instrument;
• and
• at least one additional element that is produced based on waveform data extracted from sounds of the musical instrument separately from the basic waveform data and that is applicable to multiple levels of the hit strength, the additional element is produced based on differential data given by extracting a difference between two data waveforms obtained at comparable hit strengths, and the output mechanism outputs output waveform data that is produced by applying the additional element to the basic waveform data.