Most varnished surfaces can be got to a dead level and brilliant gloss by first rubbing level with hair cloth or felt and finest-grade pumice powder, and bringing up the gloss with tripoli, crocus, rouge, or putty powder. All inequalities being removed, rub carefully with tripoli and oil, working with a circular motion till the surface is perfectly smooth and inclines to brightness. Wipe off all greasiness and well rub with dry putty and silk, and finally finish with flour, still using silk or the palm of the hand, which should be perfectly clean. It will require practice to find the most suitable varnish and the knack of imparting a brilliant gloss over the large surface of a piano.