The Mother Tesla gongs are very similar to Chau. These gongs are not processed by lathing after baking, so are just the raw dark colored metal. A Chau gong on the other hand is lathed, to expose the bright bronze of the gong. Unlike the Chau these gongs do not crash and keep their low tone very well, with a little bit of a higher register. These Mother Tesla gongs are visually both beautiful and mysterious. Please check out the sound file for each size to see which would be appropriate for your needs.