Its difficult to find a keyboard teacher. Piano teachers abound. You can play piano on the PSR300 in 'Full keyboard mode' and also use it as an arranger in 'arranger mode'. It is also possible to play the piano voice in full keyboard mode and trigger auto-accompaniment, as long as the auto-accompaniment can figure out the chord your playing by combining the left and right hand.
Playing style is different on a piano, but it doesn't hurt to learn how to play like that, or learn both.
Have fun.
Starkeeper

[This message has been edited by Starkeeper (edited 02-13-2006).]