I suppose the styles will work fine...remember, it's mostly going to be used as a piano, and perform some arranger duties.
He'll know when he tries it out...I think the bass lines and drums are the most important things for him....and he can't go wrong with the price...plus, it wouldn't be hard to sell it if it doesn't work out.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.