East Room:
The East Room is the largest room in the Executive Residence; it is used for dances, receptions, press conferences, ceremonies, concerts, and banquets.
Pianos:
Most presidents had a piano of their own:
- George Washington (1st President) had a square piano made by Schoene & Vinsen (London, 1793-1806)
- Thomas Jefferson (3rd) had a square piano made by Astor & Co. (London 1799-1815)
- James Buchanan (15th) was the first to have a grand piano, a Chickering (Boston, 1823-1983)
- Abraham Lincoln (26th) had both a Chickering square and upright
- Warren G Harding (29th) had an electric player piano made by A.B. Chase (Norwalk, Ohio 1875-1985)
- John F Kennedy (35th) had an Ivers & Pond (1880-1983) grand piano.
In fact with the main exception of George W. Bush and Gerald Ford, virtually all the American presidents owned a piano, or a harpsichord. However, the president's own piano is not "the White House piano". This tradition was formalised in 1903 when Steinway, to celebrate their 50th anniversary and as a thanksgiving to the American people, presented Theodore Roosevelt with a beautiful art-case grand.
This piano's casework incorporates the seals of the original 13 states, and the painting on the lid depicts America welcoming the nine Muses. Each leg of the instrument features an American eagle – these appear to be supporting the instrument. The piano cost $20,000 to produce and was given the serial number 100,000 (although Steinway had been producing instruments with six-figure serial numbers since 1901).
This instrument became the first White House piano and was kept in the East Room. It is now in the Smithsonian Institute.
In 1938 a second Steinway replaced the original White House piano.
The new "State Piano" was given the serial number 300,000, and was presented to Franklin D Roosevelt.
The legs are again American eagles, carved from mahogany and then gilded. The instrument was restored in 1979 and is usually placed in the Entrance Hall.
More "standard" pianos can be found within the White House – primarily upstairs in the residential rooms and the Central Hall. Most are made by Baldwin (Harry S. Truman, probably the most accomplished presidential pianist, favoured this brand).
https://www.worldpianonews.com/historical/white-house-piano