Feedback Harmonizer 6
The Feedback Harmonizer by Arius Blaze. This particular piece features a contoured sound board. The feedback harmonizer is a feedback-based system with controls for delay and oscillator to create swelling drone based on the original notes. Would be best played with an ebow and slide - shown in the video with just straight plucking.
early video of earlier feedback harmonizer - video and audio don't synch proper