No, no, I think you got confused by the title La fé. Fé usually is a rhythm coming from the calabash. For some reason they didn't connect the syllables in one word as is usually done for this rhythm, that is danced and played before Manjani. This is Lafe aka Waraba aka Denabendunun. Listen to the song "Waraba". And listen to the sangban:
|x..x|.x..|o.o.|oo..| while Fefo would be |x..o|..o.|o.oo|..x.|
I learned that rhythm many years ago in a workshop with Famoudou in Bamberg, Germany. Interestingly, back then Famoudou used to sing the melody of the song differently back then. He keeps forgetting what he is doing Even back then he always needed assistence from someone to remind him of some of the parts.
I admire hie sounds. We just had the discussion about technique. See this as an example for the importance of good sounds: