Invented in 1954 by the Rudolph Wurlitzer Company's chief design engineer Cliff Anderson, the Wurlitzer Electronic Piano was intended as a portable and compact replacement for the acoustical piano. It's electromechanical design was based on a series of a tuned metal "reeds" with an electrical potential that when struck by a key, vibrated near a conductive member, changing a voltage shift that could be amplified and converted into audio oscillations. Although a "Wurly's" sound hardly resembled an acoustic piano, it was portable and did have a distinctive voicing that soon became a mainstay of rock, pop and jazz artists worldwide, with some notable examples being Supertramp's "The Logical Song" and Steely Dan's "Do It Again." The Wurlitzer Electronic Piano was in production from 1954 to 1984, and lives on today as valuable vintage instruments and digitally sampled recreations.