This is a fantastic port. The detuned @2 works really well to emulate the sound of the SD-90 glockenspiel or whatever the original instrument is, while the @13 makes a fantastic piano that you wouldn't normally expect out of @13. Though I suppose it makes sense in a way since a lot of SMW samples are actually from Roland synths that precede the SD-90.
One thing I'd note, however, is that right before the loop point, from 1:22-1:27, when you have the @13 and @6 stacked, because the latter is on channel #7, it noticeably cuts out because of SFX. I'd suggest moving it over to channel #2, which is empty for the most part except for one note that's the bottom of a chord, which feels more expendable in my opinion. Feel free to update.