Anyone that is critical of using audio files or midi files is simply crazy. There are genres of music that are based upon machine performed songs that aren't humanly playable. These are the perfect candidates for using audio or midi files and performing over the top of them. It is NOT faking at all ... it is simply being REAL. My band plays some Pink and Lady Gaga and uses midifiles as a base. The band and vocalists then build up these tracks. There is no fakery, its simply so those multiple mechanical sequenced parts sit there in the mix in perfect time. Anyone that has a problem doing that is simply kidding themselves and I would totally question their ability to perform this type of electronica live.

If you think the original artists don't use audio and midi sequences on their tours you are completely out of touch.