Schroeder & Sons (also known as Schroeder Brothers) was a small firm that built pianos and player pianos during the âteens and âtwenties era. Schroeder had factories in New York and Pittsburgh. Instruments by Schroeder are not very common today, indicating they were never built in large volume. We have seen a handful of Schroeder upright and player pianos, and they all appeared to be very well made instruments. Like most other American piano manufacturers, Schroeder was out of business before 1930 due to the Great Depression.