Most modern TOTL and MOTL arrangers (and even some lower ones) can change patterns depending on what chord you play, maj/min/7th/dim, etc., but how much that affects the accompaniment is primarily in the hands of the style composer. It is seldom you will see a style change radically depending on chord, but that doesn't mean you can't do it!

You can assemble styles quite easily out of other styles on Roland's (and probably others too), so if you WANT something this radical, it's fairly easy to say grab the min patterns from one bossa, and add them to the major patterns from another, etc., etc..

So, in fairness, it isn't really the machine, it's the guy making the style...
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An arranger is just a tool. What matters is what you build with it..!