[Anthony_iltpff]

Hi folks, I will try to ask this as simple as possible...

Let's say I am playing a song in the key of "C" and the chords are C, F, G7, if the song is too high for my voice, and I want to play it in a different key, or transpose it, is there a rule as to what the next key should be or do I just pick a key that is in my vocal range and take all the other chords that are currently in the song and change them to fit the new key?

Example, let's say the chord in one of the songs is Bbm7, would I need to change thios to a another bm7 in the new key to be consistant?

Thanks