everywhere
Dr. House is played by British actor Hugh Laurie who actually does play the piano to a limited extent, unlike many actors out there today.
Harpsichord, violin. I think he also played piano but in his day piano could only play 5 octaves and the little hammers that hit the strings were tiped with leather insted of felt like today. Because of this they couldn't play realy fast trills like todays pianos.
Tchaikovsky played piano, which was one of the prerequisites to studying music at the Moscow Conservatory. Most theory students even today are required to learn piano.
Piano
The automatic player piano is still used today and you have to insert a piano roll to activate the keys and pump it to play.
All of the can be played on piano and have piano acompaniements.
a lot of people played the piano in the orchestra
The piano is a world wide instrument, played by many different people. 8)
Liberace
the piano sang beautifully when i played the piano
he played piano.
A piano typically starts on the note A when played.