Hi ya, Go to this site and you'll find plans for making a simular sounding
insturment called a "hank drum" out of a "unused" propaine tank.
http://www.ehhs.cmich.edu/~dhavlena/...ge-lp-hang.htm
On youtube,checkout "hank drum" and hear a few examples of "out of tune"
one's. P.s with an electronic tuner,you can create your own tuneings