Playing with the possibilities of musical instrumentation, “Electro-Acoustic” is a capacitive-sensing sound device. Through the manipulation of three capacitive-sensing rings, the performer controls the speed of a tabla rhythm, the note progression along a blues scale, and the pitch of a two harmonizing tones. Similar to a theremin in that the performer does not need to touch the instrument, but only place their hands in proximity to the rings, these three sonic elements are controlled simultaneously. The device then outputs these three channels of sound individually to one of eight surrounding speakers positioned in a ring around the instrument. Each channel of sound moves sequentially to the next speaker and in this way chase each other around the ring. The result is a swirling of layered sounds both in the physical and sonic sense.