https://en.wikipedia.org/wiki/Boomplay

"Boomplay primarily focuses on African local and urban music content and was first launched in Nigeria in 2015."

https://www.boomplay.com/

• For artists it has format https://www.boomplay.com/artists/<number>
• For albums, https://www.boomplay.com/albums/<number>
• For tracks, https://www.boomplay.com/songs/<number>
• (It also has playlists which should be discarded as too volatile.)

It is a free (ads supported) streaming service. The premium subscription solely offers additional features (download to the app for the subscription period only, better audio quality…) not additional songs.