Sander,
I have EMC styleworks and it can convert part of a midifile into a style; so if you have a song you can use parts of that song (like the intro, the verse, the bridge, the chorus, the ending) to make corresponding parts of a style. Many arranger manufacturers today make styles this way; in the VA7 ZIP disk there is a style called "Guitar Oldie" which is taken from an old song of the Shadows.
Of course these styles can be used just for one song, but for that song they are really effective.