DogVoice + Deerhorn 两电路组成的乐器，两个电路均由 Peter B 设计。
a musical instrument made with DogVoice + Deerhorn, both circuits designed by Peter B.
DogVoice has 2 pairs of high freq osc, heterodyned to make audible tones, then though low pass filters.
Deerhorn is an advanced theremin. that intestine-shaped antenna sense flesh and output signals based on distance and motion (leaving / approaching).