Mike Pauers (PHD in ichthyology) has been studying the cichlids of Malawi for years. We have over that time shared many aquarium fish (a pair of spawning Tomocichla most notably), and their progeny, and had many discussions about cichlids, and jazz. I'm proud to share a link to his article.
https://rdcu.be/96Fi
https://rdcu.be/96Fi