I guess as this is an XT clone audio card actually woun't matter much. Most games that are playable on this computer come without audio support. And those that do, simply run to slow. Even if your Schneider (neat machine!) runs at 10mhz.
I have tried myself. Finally I installed Sound Blaster CT-1320A in my IBM 5160 (OPL2 + CMS synthesis), but I almost found no games to use it with. On XT even Prince of Persia is rather unplayable and you're really limited to the earliest games which only support PC speaker sound. I doubt that there even are any games for XT with MT-32 support.
So, although it will improve your machine's cool factor, you woun't do much more with it. To think about games with sound support (MT-32, Adlib), you should have at least 286 machine.