The band Deep Purple wrote their biggest hit, "Smoke on the Water" after a fire in the casino at Montreux, Switzerland (on the shores of Lake Geneva) forced them to change their recording plans. TAG's Deep Purple is a smoky, deep dark purple transparent glass. It reduces with super-metallic effects with little or no oxygen, and gains a thicker, more opaque reduction film when reduced with some oxygen in the mix. The reduction can be made more opaque by striking it, and it can also be encased. Deep Purple generally reduces with blues and greens, but can also create purples, pinks and even bronze-like tones in the metallic sheen. The density of the color also lends itself well to thin applications, including stringers.