Patent ID: 7504574

Claim:
An electronic musical instrument comprising: a keyboard having a plurality of keys which are operable to generate tones and which can be assigned with waveform data which is voice data representing the tones generated by the keyboard; a display section that displays an assignment state of the waveform data to the keys of the keyboard; an operating section that is operable to input a mode setting operation in correspondence to the display of the assignment state of the waveform data; a mode setting section that sets a waveform direct selection mode in response to the mode setting operation of the operating section; a waveform selection section that selects waveform data assigned to at least one key of the keyboard as an assignment editing target, in response to direct operation of said one key of the keyboard under the waveform direct selection mode, and that enables editing of the assignment state of the waveform data assigned to said one key; and an editing section that can be operated to conduct the editing of the assignment state of the waveform data, wherein the editing section can assign the waveform data to a range of keys arranged from a start key to an end key by directly operating the start key and the end key, and wherein the editing section cannot assign other waveform data by directly operating a start key or an end key in overlap manner to the range of the keys which are already assigned with the waveform data by means of the start key and the end key.