The first drum I built out of rubbish bin in my dormitory in Finland about 50 years ago
https://files.bidm.cn/zekro/2022/first%20drum%20I%20built.mp4 my son testing it after so many years!!!
https://files.bidm.cn/zekro/2022/first%20drum%20I%20built.mp4 my son testing it after so many years!!!
I invented electronic Santur. in Chinese, Yang Qin in 1985 and I have a patent from Finland. here is the picture of the prototype I
https://files.bidm.cn/zekro/2020/TV%20shows%20and%20programs%20in%20China%20II.mp4
https://files.bidm.cn/zekro/2020/TV%20shows%20and%20programs%20in%20China%20I.mp4