Hi Duncan,

If you explore the collection of loops that come with newer versions of Band-in-a-Box, you'll find quite a few drum n bass and jungle loops. They're mostly drums, but there are also some bass, pads and atmosphere loops as well, which will follow the chords you've entered.

You can find them by hitting the Loops button on the toolbar, or by right-clicking on a track name and clicking on "Select a loop for this track".

Thanks
Kent
PG Music