by the way i have a question
which games are using mt-32?
i know about kyrandia and monkey island 1 and 2
what else?
Many many many LucasArts, Origin, Microprose, Dynamix, Sierra, Interplay etc. etc. etc games. In my estimation about 80% of PC games supported Roland MT-32 in the early 90s, so look mostly for PC games from 1989-1993 or so. Later it was superseded by General MIDI.
As far as I can tell, King's Quest IV was the first game with Roland MT-32 support. By the time Dune II and X-Wing were released, MT-32 support was starting to fade away. Dune II was an interesting game in that some of the music in it sounded better with MT-32, and some with Roland Sound Canvas (GS/General MIDI).
The best sounding MT-32 games were IMHO from Sierra, Dynamix, Oriigin, Interplay and LucasArts (in this order). For some reason Microprose games sounded "odd" with Roland, for example Civilization. Microprose didn't simply have as good musicians I guess.
However, possibly the best sounding Roland game I ever encountered was
Lethal Weapon from Ocean (yes, the movie game). The intro music just blew me away, I couldn't believe MT-32 could sound that good. Other two unknown games with brilliant MT-32 music were
Utopia and
King's Table: Ragnarok. And let's not forget the last level in Dynamix'
Nova 9, it also blew me away. Oh and I never forget the faces of my Amiga-owning buddies after they heard how much better the music in
Speedball 2 PC sounded compared to the Amiga version, which was supposed to sound so good...
I get an urge to run quite a few old PC games from my collection...

Too bad there was a problem with Nova 9 on Pentium machines where you could not advance from the second-last level to the last level.