Hi Waltsweet, what a clever idea, I think I’ll have a go at making one of those.
One solution to the chromatic whistle is the Sopilka.
http://www.crees.ku.edu/outreach/sopilka.pdf
TTFN
John S
Hi Waltsweet, what a clever idea, I think I’ll have a go at making one of those.
One solution to the chromatic whistle is the Sopilka.
http://www.crees.ku.edu/outreach/sopilka.pdf
TTFN
John S