This is a simple method to get a hold of knowing how to play the makossa progression on the keyboard or how to solo to it.
The basic progression for it is
C F G F
DOH FAH SOH FAH
To solo with it i.e if you do not want to play chords you can play the notes individually
C – C E G C
F – F A C F
G – G B D G
F – F A C F
See list of basic piano chords here
Some kind of nigerian gospel songs that this progression goes with include
Every body luku luku see what the lord has done for me
Eeh Eh eh eh, my God is good oo