it is no trivial task to learn to proficiently sight read full sheet music in every key.
Mike
That is for the real pianist to play in all keys, but for the hobby keyboardplayer not needed
Or you must like to play piano songs too ( i like, but its too difficult for me at the moment
)
Yes, the G major key and F major key are the easiest scales ones to use.
I do have some starters studymaterial for keyboard and it goes not further than one sharp and one flat, that's it
I do have some more advanced keyboard lessonsmaterial and it revolves around these two F and G keys to play from in one series of lessons.
I don't see more keys in my advanced keyboard lessons
Playing in minor the A minor and D minor is also present there
Aminor has no flat or sharps and Dminor has one sign.
So its all easy