... Electrolytic Copper and Tin 3.different place, different sounds The Tiger Sound Gong is "Hu Yin" Gong in ... and Tin and their surface are very light. The Tiger Sound Gong can be struck to produce ... gives different sounds, for example, if you beat the centre, it gives a spectrum of overtones and great ... sustaining power, and if you beat the outer ring, it gives cymbal-like sounds and overtones.All ...