Open up your Realtracks folder inside BB folder and doubleclick any of the .wma or .wav files and give a listen using your default player.

Those are the "raw" files that RealTracks technology chops up and uses.

If you listen to enough of them, you will come to the conclusion that I have, and that is simple enough, the player is playing to a "target" set of changes or a song that the developers used for the purpose of that particular style and genre. But only the player can hear the backing tracks in their headphones as they play.

You will also notice that each Realtrack source file is set up such that there is one "dead on" the target key, plus two more, one a half step above and one a half step below that target key. They are playing identical stuff, just in the three different keys. I take it that these are enough for the underlying pitch-shifting algorithm to be able to transpose whichever chosen RealTrack to the chosen keysignature.

There is an accompanying txt file for each RealTrack, too, which has the carefully chosen Loop Points for each source file in it. BB needs those, too, to put your tracks together.

For the most part, what the RealTrack plays is chosen by the *phrase* and not by the note as would be the case in a MIDI situation.

--Mac

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