I am a bit confused about the function of changing a key in a BIAB Chorus? I don't believe a key change will effect any chord which you have written in the grid chart. So since you are cycling the chord chart, which is not changing, I am not sure you should expect to hear any thing different. Perhaps, you may be assuming that the generation of the tracks will be different based on the key. That I can not confirm or refute. But I have never seen that happen in BIAB.


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