I totally agree with the author of the video: the girl in blue is much more interesting than the slow dansa ;)
Anyway, just to say something useful, a widely used djembe accompaniment rhythm for the slow dansa (dansa lent) is very simple:
1...2...3...4...
s..bsss.s.T.tts.
(upper case is a flam)
The djembe call is usually:
1...2...3...4...


