Traditional djembes are tuned by using the excess rope on the drum .The head is tightened by weaving triangles through the vertical ropes with the extra rope. The more triangles you weave, the tighter the head becomes. Care Guide: Pearl Rope Tune djembe feature a synthetic shell that is subject to react to extremely hot conditions. Refrain from prolonged exposure to temperatures at or above 122°F / 50°C. Failure to do so may result in damage to the instrument. For the utmost in care, we recommend a moderate stable climate suitable for humans.