During the consolidation of the American piano industry in the early 20th century, Weber became part of the Aeolian family of brands. was established in 1852 by Albert Weber, a German immigrant, and was one of the most prominent and highly respected American piano brands of the late 19th and early 20th centuries. In addition to making pianos under its own name, Young Chang also made pianos for a time for Baldwin under the Wurlitzer name, for Samsung under the Weber name, and private-label names for large dealer chains and distributors worldwide. in the late 1970s, and established a North American distribution office in California in 1984. In 1975 the arrangement ended when Young Chang decided to expand domestically and internationally under its own brand name, thus becoming a competitor. As time went by, Young Chang built more of the components, to the point where they were making virtually the entire piano. This arrangement reduced high import duties. Yamaha shipped partially completed pianos from Japan to the Young Chang factory in Incheon, South Korea, where Young Chang would perform final assembly work such as cabinet assembly, stringing, and action installation.

In 1964 Yamaha and Young Chang entered into an agreement in which Yamaha helped Young Chang set up a full-fledged manufacturing operation.

In 1962 the brothers incorporated as Young Chang Akki Co., Ltd. But the prospects were bright for economic development, and as a symbol of cultural refinement the piano was much coveted. Korea was recovering from a devastating war, and only the wealthy could afford pianos. In 1956, three brothers - Jai-Young, Jai-Chang, and Jai-Sup Kim - founded Young Chang and began selling Yamaha pianos in Korea under an agreement with that Japanese firm. Pianos made by: Young Chang Co., Ltd., Incheon, South Korea and Tianjin, China

Young chang upright piano u107a