Tuned Thai Gong High Octave a' Used Purchased new from a percussion instrument specialty store in Tokyo. It is a used item, but I believe it is in a condition that has not changed much since it was purchased new. I played it with felt-wrapped, yarn-wrapped, and cotton-wrapped mallets. I have not used hard mallets made of metal or plastic. For reference, I have included images of the tuning measurements. As a characteristic of the instrument, it contains many overtones, and the pitch is not as precise as a keyboard instrument. Audibly, it sounds close to the intended pitch. Please understand the above points and purchase with no returns and no claims.