Roland UM-4 Owner's Manual page 19

Specifying the Output Destination for MIDI Data
Here you can make settings for using the USB MIDI driver with applications such as the
"Media Player" that is included with Windows.
1
Click the Windows [Start] button, select [Settings] from the menu that appears, and select
[Control Panel].
fig.03-08.e
2
In the Control Panel, double-click the [Multimedia] icon.
fig.03-09.e.eps_50
Installing & Setup the Driver
19