Analog robot
An analog robot is a type of robot which uses analog circuitry to go toward a simple goal such as finding more light or responding to sound. The first real analog robot was invented in the 1940s by William Grey Walter. The name of these robots were ELSIE and ELMER (Electro Mechanical Robot). The original circuitry was developed using two vacuum tubes and a photocell to search and follow a light. Recently a kind of analog robots was developed by Mark Tilden.
Gil Weinberg
Weinberg has developed a number of novel musical instruments for novices, such as the Beatbugs, and the Squeezables before conceiving the field of Robotic Musicianship. In 2005, he created the world first improvising robot, Haile, which can listen to human musicians, improvise and play along using a variety of musical algorithms. His next inventions were Shimon an improvising robotic marimba player that can improvise like jazz masters, and Travis (also known as Shimi), a smart-phone enabled robotic musical companion that is designed to enhance listeners musical experiences. Shimi is currently being commercialized by Tovbot Inc.