Canter in BlueLike smooth jazz; a moody portrait of a free flowing canter. Title: Canter in Blue Medium: Raku fired ceramic clay, solid cherry wood base Size: 9(H) x 12(L) in What is raku? Glowing red hot clay pieces are taken from the kiln and placed in a material that catches fire, such as sawdust. They are then enclosed in a container with the flames. The lack of oxygen gives the glazes striking colors and patterns. Areas with no glaze take oxygen from the clay