The ennanga, nanga, nnanga or enanga is a type of arched harp played by the Ganda people of Uganda. The sound box is made of a single piece of wood and roughly hemispherical. The top of the box is a stretched resonant membrane made of antelope skin, tied to a piece of hide at the bottom of the box. The neck is attached to the inside of the box, exits through a small round opening on the membrane, and curves upward for about 60 to 70 cm. Seven or eight strings are attached to a piece of wood inside the box, and extend through the skin to tuning pegs inserted along the neck. Sometimes small metallic rattling pieces are attached to the pegs, to color the sound. It is usually used to accompany men's singing. https://en.wikipedia.org/wiki/Inanga_(instrument)

The a'dungu, also called the ekidongo or ennenga, is a stringed musical instrument of the Alur people of northwestern Uganda. It is an arched harp of varying dimensions, ranging from seven to ten string or more. The instrument is made of a hollowed-out slab of wood, which is covered by two pieces of leather, woven together in the center. The upper piece of leather functions as a soundboard, and a wooden rib supports it, serving also as a structure to secure the strings to the soundboard. A curved wooden neck, containing a tuning peg for each note, is inserted into the end of the instrument's body. The strings run diagonally from the tuning pegs in the neck to the rib in the center of the body. Tuning is not standardized, and players will usually tune by ear to each other shortly before a performance. The a'dungus are not in a particular key, and the tonality can be adapted to the preferences of the performers. https://en.wikipedia.org/wiki/Adungu