Software needed to make this work in SMW would be PetiteMM, which is in the Tools section, and if you find that it is not exporting all the sound, MIDI-editing software such as Anvil Studio or NoteWorthy Composer will allow you to see the full song data in a human-readable format. I am a fan of the demo of the latter though some successful porters here have sworn by the former as well.
Finally, in the Tutorials subforum, Wakana has a music porting tutorial considered state-of-the-art. This is essential reading that will get you on the road to producing a quality port. Check here.
Just look above you... If it's something that can be stopped, then just try to stop it!