If you have a piano and a keyboard at home I strongly suggest you play both! You'll notice that you will also lose the strenght and quickness in your fingers if you don't. If you're used to playing an acoustic piano, and used to a weighted keyboard, stepping away from this and entering the world of arrangers can really put a damper on your piano playing (acoustic that is)... You need to keep your fingers in shape with the weighted keys, and of course using the arranger function a lot will lessen your ability with your left hand if you don't keep practicing with it on a regular basis on an acoustic..

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