Ok, I confess - the playing here is not my best but it is a quick
try at recording the Tyros4 voices with the Roland BK-7m styles.

I used the Gold Swing style variations 3 and 4 plus a variety of
voices from the Tyros 4 just as an example. To get the T4 to record audio and pick up both the Roland and the T4 sounds I had to run a cable from the roland into the mic input on the T4.

Anyway, here it the link if you want to listen.
http://www.4shared.com/audio/S1AmslbS/BK7m_with_T4_Voices.html

I still don't have the T4 keyboard setup in split mode and that
means all the voices sound on the entire range of the keyboard.

Hammer