I don't know if this is helpful, but I have a Line6 POD 2 that will throw off some noise into the system under certain circumstances. I have to be sure it's output volume is down. It is a pattern..... but yours sounded random in the clip.

Got a cell phone near the gear?


You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.