1) Thou shalt not use the transpose button

2) thou shalt learn all keys (minor and major)

3) thou shalt practice the hard keys

4) thou shalt learn the chords in all keys

5) thou shalt be able to play any from from any key even if the notes are on one key.


Seriously people, I am pianist. And it is not that I have to play songs with random keys. But so many times I have to accompany singers with songs I have never heard before. Improvisations is part of my skill.