Can’t the SX900 play those 950 oldies styles? Seems a shame to lose out on probably the biggest jump in PSR capability in years just because those styles aren’t in the ROM.

Or are you referring to some of those styles that used drum loops? You might still be able to recreate those using samples of the loops. Has anyone at PSR tutorial posted those?

I know when the BK-9 came out, it didn’t come with many styles (maybe none!) that leveraged the three style MFX (insert effects) and multiple drum Parts that got added to the OS. But some of the EA7’s styles got updated to use them and play well in the BK-9. Perhaps this is why the Genos styles work well?

But your preference for the older models seems to revolve primarily about missing styles, not sounds or OS. Surely you can add those older styles?