Many style files available at web sites have internal errors. This is especially true for converted style files.
Some versions of EMC Style Works even produce style files with wrong MIDI length bytes and / or missing delta time bytes before style parts end.
Style files with these errors cannot load in this program, as they do not comply 100% with the MIDI specifications.
In this situation an error message saying "Internal MIDI Error" will be shown at the User Interface.
If you discover these errors, you can repair style files with these (and many other) errors with my Style Fixer program.
Some style files have part specific voices settings.