In the sound hole you can see the magnetic field pickup that captures the string energy of the guitar side of the harp guitar. If you look at the left side of the pickup you can see an appenditure coming off it and pointing down into the guitar, this the "arm" of a choir microphone meant to reference the acoustic cavity of the instrument. I have since moved on to a Sunrise magnetic field pickup (the best) and the Trance Amulet Lens system (also the best). At the time this picture was taken there were 2) Magnetic Field pickups on the sub bass side, 6) hex-a-phonic pickups on the bridge of the guitar side, 1) magnetic field pickup in the sound hole of the guitar side, and 1) Choir microphone inside of the guitar. You think I am serious about nailing the guitars tone? You better believe it!