Floyd and Mario and others have all given great advice, and I will throw my 'weight' behind their comments also, if I may.

I'm following this thread with interest because I'm also looking for another keyboard sometime in the near future.

Whatever model you choose, do get a keyboard with a weighted action. They are just so much more pleasant to play.

As we all know, 'Piano' is an abbreviation for Pianoforte. Soft and Loud. You simply can't responsively/reliably do that with a synth keyboard. Well, none that I have ever played anyway.

The action is what makes it.

I've got a Roland RD-1000 88-key weighted action keyboard, (as well as a Yamaha Conservatorium Series C5 Grand). That Roland was very expensive but mine has certainly paid for itself many time over. There are much cheaper models available nowadays, but there's no substitute for a weighted action.

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BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones