Greg,

I recently sold my original Tyros keyboard. The "midi" patches and sounds were awesome when used with Biab's midi styles. You would only want to use your Tyros 4 "midi" patches that are not currently matched with Real Tracks.

The Tyros styles are factory set with DSP & effects, so if your song contains a Tyros style, you would only want to "add" to it with use of the Real Tracks that are not currently in that specific Tyros style. The Tyros styles stand on their own and don't need much, unless you need a Real Track solo in your song that can't be recorded "live" enough from the Tyros.

However, if you are using a Biab midi style to create a song with, you will want to use as many Real Tracks as possible in it to compete with the sounds of the Tyros 4.

Marrying both Real Tracks and the Super Articulated Voices on the Tyros in a song is what you are after. Use the Tyros voices on the midi parts that are NOT already covered by a Real Track.

Trax