. . "The Claviola or Key-Bagpipe is a musical instrument that was designed in the 1960s by Hohner technician and designer Ernst Zacharias (inventor of the Pianet and Clavinet). The instrument was produced for a few months in the 1990s before being discontinued.Similar to a melodica (which is still in production), but worn like an accordion, the claviola has a set of piano keys on the right side that range 2\u00BD octaves."@en .