I find the difference between the new style format and the old, subtle, but very effective.

The PSR-S910 has the registration buttons in the middle, and that is my preferred place for them, although I did manage very well on the PSR-3000, which had them on the right.

Just a matter of getting used to them, I suppose.

Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.