It's part of an interactive art project.
It is meant to challenge people to come out of their urban insularity and also to provide some summertime music.
They’re out there to get people talking to one another and to claim ownership and activate the public space.
The creator of the project, Luke Jerram, is an artist who lives in Bristol.
Street pianos have also been delivered to Birmingham, England; São Paolo, Brazil; and Sydney, Australia.
“It’s a blank canvas for everyone’s creativity.”