The pinnacle of the organ builder's craft was exemplified by organs such as the robot band of which seven were built by Decap of Antwerp in the early 1950s. Built in Decap's trademark art deco style, each organ featured three highly articulated robots, one of which played percussion, one played a saxophone and the last played a conceptualised and flattened brass instrument (both voiced by hidden pipes). The organ also featured the more usual hidden ranks of pipes and a visible accordion. The robot drummer turned to align his drumsticks with snare drums, cymbal or tempo block as required, his foot playing a hi-hat. The other two robots, normally seated, would stand when they were required to perform. Their shoulders would rise and fall and their cheeks would puff out as they played to emulate blowing into their instrument. In addition, the wind players would tap a foot in time to the beat of the music. As a piece de resistance, the two wind players also take a bow at the end of a music roll.