IIRC the MT-32
is a full length card.  I'm fairly sure that back in 
 the
 day I picked one up.  Can't remember how.  The
music from it was 
 superb,
 at least for the time -- probably still.  I 
 The MT-32 is a external box by Roland, really a fancy drum syth.
 Since the
 smarts were basically a chip, that chip found its way to sound cards.
 Most
 modern motherboards and sound cards still offer MPU-401 and MT-32
 emulation, even oddly enough if midi itself isn't supported. 
 
My mistake.  A quick Google shows that I had a LAPC-1 -- an MT32 on a card.