I love brazilian music (and latin-caribean too, but that is definitely not brazilian), and I love Roland's keyboards for true feeling of brazilian styles. Now I own VA-76 and G70 (and PSR-9000 that have boring semibrazilian styles).
G70 have great sharp sounds (after 1.06 OS patch applied). It is OK with that sounds for me, but it is all about taste.
There are many brazilian styles (sambas and bossa-novas) at G70 and I think (that is my taste, other people think different) that many of it is average quality (it is constantly seems to me "brasilian feeling" of same styles on VA-76 is more than that of G70 -- while G70 styles more elaborated and "CD-quality").
I live in Moscow, Russia and like brasilian music. I have about 200 CD with brasilian music -- from 60-s to contemporary electronic. I like to play bossa-novas and sambas with my arrangers.
Can you point to me places in internet where I can find true brazilian styles for Roland arrangers? Or simply e-mail such styles to me!
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Roland G-70, Korg M3-73 with Radius, Roland Handsonic HPD-15