Jude Nwankwo (MSM in conducting, 2021) has just published his essay "Nani idi-nma n’ebere (2007) for soprano solo and SATB chorus" in the Journal of the Musical Arts in Africa. The following link leads to the essay: https://www.tandfonline.com/eprint/JHCBNZU4WF3WRVCYHSPD/full?target=10.2989/18121004.2020.1864904.