In addition to Don's core sounds which closely match the ones I use...
In portuguese tradicional music, the accordion plays an important role. I use several from those available on my Tyros; they're all good. Also harmonica for solos. Another sound (unfortunately the Tyros' samples are not very good) I use sometimes when I play with local musicians in tradicional music (with celtic inspiration) is bagpipes. And some warm pads with my LH.

-- José.