I design percussion instruments and I have been researching for some time now the acoustic properties of different common alloys such as phosphor bronze, brass, copper, nickel silver (german silver) and so on.... Specifically I want to test the amplitude and frequency modes of each. This would be in several different forms though; I need to test the alloys in a simple bar (8"-12") form, pipe/tube form (2" OD x 4' L), and most importantly with a drum cylinder with and without drum heads attached. I am an audio engineer so the recording and testing is not a problem. I just need someone to point me in the right direction as far as how to test and measure. What would be awesome is if I could find a program that would accurately simulate the acoustic principals that way I could test anything in any configuration without trying to find all these metals myself. Thanks! - (this is my first post) Donnie PS... if anyone has any audio measurements they would like tested let me know and I might be able to help you out.