Hello,  I am from Germany, and so I am not quite skilled in the various genres of African, here especially Nigerian music. So, please help me if you are able and disposed to:
How can one categorize the music, in this case especially the album "Unchained", of Sunny Neji?

And how can one categorize the music, in this case especially the album "Heartcry", of Modele?

And Tosin Martins with the album "Happy Day"?

Thank you for your help!