Founder of Julius Blüthner Pianofortefabrik GmbH, a piano-manufacturing company in Leipzig, Germany. Along with C. Bechstein, Bösendorfer and Steinway & Sons, Blüthner is frequently referred to as one of the "Big Four" piano manufacturers. Julius Blüthner established his workshop in 1853. By 1900 Blüthner had become the largest piano maker in Germany, producing some 5,000 instruments annually. Innovations such as the Aliquot string, a fourth string that vibrated sympathetically and that is tuned in unison as well as the cylindrical soundboard and angle cut hammers, created a unique voice for the Blüthner instrument.