Harpejji solo 12 - Trying the pisound

(This news is part of the Harpejji solo project)

In an attempt to solve the problems I encountered with my first rpi setup as a harpejji FX box, I purchased a Pisound rpi sound interface. It seems to help with the high hiss I was getting with the previous setup, but not with the "floating ground" low hum. I'm definitely getting closer though – I will post a detailed description of the new setup when everything is working smoothly.