Having recently found a seashore’s surf likened to a grin, I was struck by the keyboard version, like a piano with a personality such as you might see in a cartoon.
‘The piano keyboard displayed its endless grin.’
Source: Carlos Ruiz Zafón, The Shadow of the Wind, trans. Lucia Graves (London: Phoenix, 2012), p. 57
Photo credit: jazz_rodv at pixabay.com