That MIDI chart is the least helpful thing I can imagine for a new player. It's more use to someone who wants to make an electronic melodeon. It doesn't show where the buttons are, and you hav to woprk out the chords by knowing, for example, that D, F# and A make a D major chord.

John K's video course comes in three instalments which you can buy separately. I've not seen it but it comes highly recommended by others. It's possibly a better approach that reading books.

Anahata