Electronic musical instrument

A music training apparatus comprising:

• detachable memory means for storing a plurality of groups each of which including automatic performance data for automatic performance and specific data corresponding to said automatic performance data;
• extraction means for extracting one of the plurality of groups stored in said detachable memory means;
• playing means for playing the automatic performance based on the automatic performance data extracted by said extraction means;
• a plurality of operation elements each of which outputs operation element data in accordance with a selection operation;
• display means for displaying a plurality of visual data corresponding to said plurality of operation elements;
• and
• decision means for comparing specific data extracted by said extraction means with operation element data indicated by said operation elements, and for deciding whether or not there is coincidence thereinbetween.

An electronic musical instrument comprising:

• detachable memory means for storing automatic performance data;
• reading means for successively reading out said automatic performance data according to a predetermined timing;
• timing generation means for generating one or both of sound and silence timings of externally provided performance data inputted from an external performance source according to sound or silence timing of said read out automatic performance data;
• window generating means for setting the window of a predetermined time interval before or after both or one of sound and silence timing of said automatic performance data;
• comparing means for comparing the degree of discrepancy between one or both of sound and silence timing of said automatic performance data and one or both of sound and silence timing of said externally provided performance data within said window;
• and
• marking means for marking according to the comparison result of said comparison means.

An electronic apparatus which carries out a plurality of functions, comprising:

• electronic apparatus body;
• function designation means having a detachable external memory for memorizing a plurality of designation data, which respectively designates predetermined functions, on predetermined locations of the function designation means;
• setting means for freely connecting and disconnecting the function designation means with the electronic apparatus body;
• reading means, when the function designation means is connected with the electronic apparatus body in a setting-direction, for reading out one of the plurality of designation data memorized in the function designation means, the reading means capable of reading different data in accordance with the setting-direction of the function designation means, and the read out designation data corresponding to the setting-direction of the function designation means;
• and
• control means for controlling the electronic apparatus body based on the read out designation data so that the electronic apparatus body carries out a predetermined function corresponding to the read out designation data,
• wherein the electronic apparatus carries out a plurality of functions in accordance with the setting-direction of the designation means to be connected therewith.