* A soft cloth
* A mild dishwashing detergent
* Water
Instructions:
1. Dampen the soft cloth with water.
2. Add a small amount of mild dishwashing detergent to the cloth.
3. Gently rub the pen mark with the cloth.
4. Rinse the area with a clean, damp cloth.
5. Dry the area with a soft cloth.
*If the pen mark persists, you may need to use a stronger cleaning agent, such as isopropyl alcohol or nail polish remover. However, be sure to test the cleaning agent on a small, inconspicuous area of the piano first to make sure that it does not damage the finish.*