The expensive pipe was purchased few months back from the company, Wm Kratt itch Pipe Co.. I use this pitch pipe very often so it is need to clean after some days. Well, it is so badly designed that I couldn't clean it properly. And after some days of cleaning it stopped giving out sound, I felt bad for that.My son was very to get it, he used this pipe for playing some times. But I don't feel that it is because of him it stopped giving out sound. I took it to the store but I didn't get any help from their employees, so I could only advise for new buyers do not buy from them if you lack experience of dealing with them.