Dave Bellinger has long been known for his solid, meticulously crafted and innovative eKalimba designs (an eKalimba is a kalimba with an electric pickup). This one combines a hot pickup (that is, with a very strong output signal), "graphical buzzalizers," and generally smooth design and construction - with the 15 traditional notes of the mbira nyunga nyunga, also known as the karimba in F.
All of this makes the Bellinger F15 Nyunga a great instrument for looping (a looper is a device that instantaneously records what you're doing and plays it back in a loop, so you can layer multiple parts or instruments at the same time). The lower-row notes are the same notes as on the Student Karimba - meaning complete phrases of African songs can be played on its lower-row notes. So, imagine playing a lower-row song into the looper, and coming back and adding upper-row notes to the second pass of the music.
I do that, and much more, in the video at the end of this article.