I think it depends on the style. I don't know how accurately the BiaB 'brain' does this, but I know from writing styles that there are certain key specific patterns you can write that will turn up in the preferred situation. I've never tested them in the 'wrong key'.

My advice is your best bet is to analyze the song and use the proper key.

But then using the relative minor or major might just produce some interesting results, or not matter at all in your chosen style.

Insights and incites by Notes


Bob "Notes" Norton smile Norton Music
https://www.nortonmusic.com

100% MIDI Super-Styles recorded by live, pro, studio musicians for a live groove
& Fake Disks for MIDI and/or RealTracks