Underneath the file name (top center) is the Mixer. Click it to see a menu of all instruments. Hit the name of the instrument that you want to change sound for, and you'll see a multi-tiered dropdown menu of all available sounds you can access with MS4.
Comments
Underneath the file name (top center) is the Mixer. Click it to see a menu of all instruments. Hit the name of the instrument that you want to change sound for, and you'll see a multi-tiered dropdown menu of all available sounds you can access with MS4.