Much depends on the specific arranger; Marco Parisi plays Korg arrangers, that have a lot of funky/contemporary/fusion styles, but can you imagine Jordan Rudess playing the "Organ World" section of the Tyros 5, like in this YouTube demo?



I am not saying that the Tyros 5 is a bad instrument, mind you! It's only the way sometimes is marketed, and demo's like this other one

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make it seem like an instrument for old farts (there: I said it!)
To clarify further my thoughts, I think that Yamaha should pay big money guys like Tostie, because at least he shows that the Tyros can play also contemporary music!