I'm not sure there is a composer out there recognized for his work that doesn't know the basics of formal composing. Or if there is, he hasn't written more than a couple scores.
To get back to the basics, music scales were invented for a reason, if you don't use them your music will sound bad to almost everyone.
This is quite reasonable answer to LordCrash, on top of that there is a elephant in the room. Something generic will mean a decrease in quality compared to the divinity games of the past. Kirill Pokrovsky was writing some really outstanding soundtracks for the divinity games. He can never be replaced, but if you do not want to lower the quality of the game then you have to aim very high.
And btw, while I like the Drakensang soundtrack and consider if fitting for a Realms of Arkania (DSA) game, I don't think that level of quality would be desirable for a divinity game.
Here btw some samples of Drakensang OSTs as people seemed to have trouble finding it:
https://www.youtube.com/watch?v=QtfUtFpj1Oohttps://www.youtube.com/watch?v=TvU8xQeqnWYhttps://www.youtube.com/watch?v=TbjciBKNkos
