It's hard to imagine why so many here want to buy the Tyros2 sight unseen. Yamaha's dealers must have a very generous return policy! (Many bugs aren't discovered for several weeks of use)
I read SO many posts here from folk who say 'I bought xyz synth and decided I didn't like it, so I bought abc synth, didn't get along with it, now I got an rst on order'........ are you ALL lawyers and doctors?? ;-)
I am a working professional musician, and there is NO WAY I would ever buy a keyboard after only one time playing it in a store, yet alone sight unseen. Most of the keyboards I have bought have been used on gigs by me for at least five years (got seven out of the G1000, hoping for at least that much from the G70!) and the familiarity that that length of time on one instrument can bring allows MUCH more comfort on a gig and the ability to concentrate on the music, not 'where's the Fill/Rit button on THIS one'!
Buy in haste, repent at leisure (but it will sure make you popular with your pusher - I mean dealer!).
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An arranger is just a tool. What matters is what you build with it..!