2011 - Eckhard C. Schulz (ECS)

In addition to steelpans, the renowned steelpan builder ECS now also manufactures handpans (BluePointSteelharp).
Quote: „I have systematically analyzed the second overtone category“

https://ecs-steeldrums.de/en/about-us/

Note: see also in the timeline:
“20. March 2019 – ECS The Blue Point SteelHarp S – (2019)”
https://handpan-timeline.org/timeline/ecs-the-blue-point-steelharp-s-documentary/