If playing other sound files is normal, then you need to check the settings about MIDI. First, make sure whether it is set to mute. Double-click the speaker icon in the lower right corner of the screen. After opening it, see if the MIDI "Mute" function is turned on. If so, cancel it; if not, check the "Device" function. Check whether the sound card driver in "Management" is installed correctly; if the driver is normal, check whether MIDI is not started.

Open "Sound and Multimedia" in "Control Panel" in Windows, go to the "Audio" page, select "MIDI Music Playback" (sound playback), click "Properties" and check whether it is set to " Use this device control function", this MIDI must be selected to have sound.

If you still don't hear MIDI sound after the above settings, go to "Control Panel → System → Device Management", delete the sound card control part, restart the computer, and reinstall the sound card driver.