An electronic musical apparatus in which operators for changing pages on a musical instrument function-related screen and history pages on a Web screen are shared, so that those pages can be changed using similar operating systems to improve the userfriendliness. A display controller 38 is operable when the Web screen is displayed by the display 19, to change the history pages of the Web screen forward in terms of time in response to operation of a Next switch 47, and the display controller 38 is operable when the Web screen is displayed by the display 19, to change the history pages of the Web screen backward in terms of time in response to operation of a Back switch 48.