I am wondering if an experienced, highly paid, Grammy winning, Nashville mixer man, if he wanted to, could use only BIAB tracks and have a demo come out just a good as if he had recorded the tracks in a studio with real instrumentalists? (Not including any vocals, obviously)

The thing I want to know is can BIAB tracks, which seem to sound perfectly fine to my rookie ears, can be used in the production of a demo that people in the industry would take seriously?

You see, I am a student of mixing arts, and the answer to this question, from some one who really knows, is very important to me.

I know producers at professional studios would probably pish-posh the whole idea, but could a really good mixer do it and fool them?

Are there any examples of BIAB users who have made real professional demos with just BIAB instruments (Not including any vocals, obviously)

Skyoma