Using a device called Plants Play I have been recording old growth trees throughout the Pacific Northwest for years. This recording is from a majestic 1500 year old 'mother' cedar tree in an undisturbed forest in BC, Canada. I continue to be amazed at how harmoniously some trees sing when they are part of a forest. We can listen to our electrical heartbeats using an EKG, just like we can hear trees singing when they are healthy and resilient.