Did you try moving the "Happy" and "Jazzy" sliders around? That will force Songsmith to generate new chords. Note that the _key_ of the song is fixed the first time you record a song, so if you want to stick an existing wma
file into a .songsmith file, make sure you pick one in the same key as the .wma file.
Alternatively, since you're already editing the .xml file, you can use the field "SongKey" to specify the key for your new recording. "SongKey="0"" specifies the key of C, "SongKey="1"" specifies
the key of C#, "SongKey="2"" specifies the key of D, etc. all the way up to "SongKey="11"", which specifies the key of B.
Hope that helps... you're deep into "officially unsupported" features, but I think this should get you to where you're trying to go!