many styles will conflict with a particular drum pattern. I always do things the hard way it seems, but i'd try to find a real style that uses that drum pattern, enter the chords as normal, with any tags, breaks, repeats, etc. Then see what you have. You can always edit them. Once you determine if it is 8 or 16 beat, pop or swing etc, you can find other midi styles if the real style just doesn't do it for you.

Also in the styles list, you get a brief discription of the instrumentation of the styles. If its a Bluegrass song, you probably wouldn't want a style which featured a B3 organ.

Dang....This is addicting.

http://www.reverbnation.com/roberttrippmusic