There are many tunings possible. The groove often determines wich tuning can be used. Some grooves are nice in many tunings, but some grooves need a certain tuning.
The lessons @ planet n’goni are tuned in Bminor, Bflat and Siraba.
Bminor: B,D,E,F#,A (from the lowest tone)
Bflat: Bb, Db, Eb, F, Ab
I also love Aminor: A,C,D,E.G
And Cminor: C,Eb,F,G,Bb