This is the recording from the BK-7m done with the built-in audio recorder. I have not made any changes to the midi file and the Mastering Tools (great feauture) was set to default.

http://www.box.net/shared/x62motork0

I am quite happy with the result. Roland has always been good at midi file playback and remember that the BK-7m has exactly the same audio engine as the E-80 (Rolands latest - and maybe last - top of the range arranger).