I had a post be the computer did something wierd and I lost it
I will send it later sorry

but if you now your scale in C now you should learn another try Bb
it Bb C D Eb F G A Bb then take your chord name find the root of the chord it should all build in thirds the root name of your chord in C should match the
C D E F G A B C
Bb C D Eb F G A Bb
1 2 3 4 5 6 7 8
So if your chord in C is F when you change it to Bb it will be Eb. I hope that you follow me
It would be good for you to take time and learn allyour scales and become familiar with their numberso the you can go from one key to the next with any song. I can tell how to do it but I can not do it myself yet. But we are going to speak life to these fingers adn get it done.
Perfect practice makes perfect performance.