Steve,
I would like to take advantage of your songs to discuss an important difference between G-70 and Tyros 2.
One of the reasons that led me to buy a G-70, aside from the key feel and the piano sound, were exactly the Bossa Nova styles, that I consider the best among all the arrangers I have owned or tried.
My favorite one is the "Jazz-Bossa"; listening carefully to it, I have noticed that each variation lasts EIGHT bars and this allows for a lot of subtleties; for example, the drummer plays the second four bars with little differences compared with the first four (just listen to the sidestick...) and the end result is lively and spontaneous, almost like playing with a real drummer.
By comparison, the T2 bossas (with their fixed four bars lenghth) sound rather dull and repetitive, but it's true that the Tyros excels in the Jazz-Swing and also in the Ballad department, so to each its own...
I would like to do an experiment: to post a song recorded with the same style, first on the Tyros 2 and then on the G-70, to let everyone judge...
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Korg Kronos 61 and PA3X-Pro76, Roland G-70, BK7-m and Integra 7, Casio PX-5S, Fender Stratocaster with Fralin pickups, Fender Stratocaster with Kinman pickups, vintage Gibson SG standard.