Patent ID: 7745713

Claim:
An electronic musical instrument comprising: an input device that inputs performance information, wherein the input device includes one or more operators for inputting either of setting operation for setting the electronic musical instrument or performance operation; a tone generator that generates music sounds according to the performance information and setting parameters, wherein the tone generator generates music sounds in response to the performance operation; an image data generating part that generates image data representing either of the performance information or the setting parameters; an interface directly connectable to an external printer for outputting the image data to the external printer; an acquisition part that acquires an image data format printable by the external printer; a recording part that records a log, which is at least one of a history of operations of the operators or a transition of the setting state of the electronic musical instrument based on a sequence of setting operations by the operators, the recorded log listing at least internal state transitions upon startup of the electronic musical instrument, internal state transitions in printer initialization process, reception of the performance information from an external equipment, reception of the performance information from an external equipment, reception of setting information and transitions of the setting state of the electronic musical instrument due to the setting information, wherein the image data generating part generates image data representing the recorded log in the acquired image data format; and a print instruction part that transmits the generated image data to the external printer through the interface to print the log according to the generated image data.