Electrical music apparatus capable of connecting with external device

A program executed by an electric music apparatus comprising an interface to which an external device can connect, and a memory that stores device drivers for operating external devices connected to the interface and a list recording relationship between external devices and corresponding device drivers, the program comprising the instructions for:

• (a) obtaining external device information from an external device connected to the interface;
• (b) searching a device driver corresponding to the connected external device with reference to the list in accordance with the obtained external device information;
• (c) determining to control the connected external device by using the device driver corresponding to the connected external device when the searching instruction (b) detects the corresponding device driver from the list;
• and
• (d) executing a specific command to the connected external device by using a device driver stored in the memory when the searching instruction (b) cannot detect the corresponding device driver and determining to control the connected external device by using a device driver that makes the external device respond to the specific command without an error.

An installing method of an external device for an electric music apparatus comprising an interface to which an external device can connect, and a memory that stores device drivers for operating external devices connected to the interface and a list recording relationship between external devices and corresponding device drivers, the method comprising the steps of:

• (a) obtaining external device information from an external device connected to the interface;
• (b) searching a device driver corresponding to the connected external device with reference to the list in accordance with the obtained external device information;
• (c) determining to control the connected external device by using the device driver corresponding to the connected external device when the searching step (b) detects the corresponding device driver from the list;
• and
• (d) executing a specific command to the connected external device by using a device driver stored in the memory when the searching step (b) cannot detect the corresponding device driver and determining to control the connected external device by using a device driver that makes the external device respond to the specific command without an error.