In short words, I have just discovered that one of the .MOD tracks I had was including a type of Marimba that sounds very similar to the MSN Sound at some point (although it is Stereo sound, I’ll put it on each):
Altogether:
Left Speaker:
Right Speaker:
The file, basically, is just a 8khz Marimba Audio that I found (likely compressed);
Left Speaker:
Right Speaker:
Mixed:
Do anyone here knows the original file of it, and, if this was even the original Marimba Audio used?