Pianos

A public art piece titled "Play Me, I'm Yours" entails putting pianos in public spaces around Manhattan (27 in all) for anyone to sit down and bang out a tune.
May 22, 2010   The Village Voice
This piece looks at a public art project that placed 30 pianos in public places throughout London in an effort to encourage more public interaction.
Jul 13, 2009   The New York Times
<p>Pianos have popped up in random public places in Birmingham, England -- a public art installation that passively invites passersby to take a seat and tickle the ivory.</p>
Mar 23, 2008   The Guardian