So are piano learning and keyboard learning different from each other?
Yes they are different.
A digital piano has 81 keys a Keyboard 61 (some have more but they are expensive).
A digital Piano has a limited range of instrument sound whereas a Keyboard has over 500 different instrument sounds, I think my Arranger has over 1000 instrument voices. An Arranger can play accompanying music Styles as backing.
If you look on Youtube at someone playing a classical piece of music you will see both hands working in a coordinated manner but yet playing independently.
Then look at someone playing a Keyboard in a pop video, the left hand plays far less, it is often one hand plays, holds the notes, then the other plays and holds the notes, repeat etc. The left also tends to make the adjustments to the sounds, backing, and uses the control wheels.
With a keyboard like the 453, the Keybed is electronically split with the left playing chords and the auto accompanyment style providing the backing, playing different LH chords triggers changes in the backing, RH plays the melody line or vocal accompanyment.
The 453 is what is called an Arranger keyboard and this is its function to sound like a whole band or orchestra from one instrument.
That said the keyboard split on Arrangers can be turned off so the whole Keyboard acts as one instrument, hence why an Arranger is the best option to learn on if you want to play Keyboard, if you want to play Piano then get a one as they will have the full 88 keys where a Keyboard will only have 61 keys.
When I switched from guitar to keyboards I took some lessons to get me started and the first thing the Instructor said was, ....... do you want to play piano or keyboard? They are different. ....... Hence my question.