New York-based composer Joseph Bertolozzi is working on a public art project with a mission to find the voice of the Eiffel Tower. Equipped with various mallets, shakers and drumsticks, Bertolozzi and his team of sound engineers have been harvesting sounds from the tower to create an hour-long composition called "Tower Music" in homage to the iconic structure. And Bertolozzi is no stranger to experimenting with strange instruments; in 2009, he gave New York City's Hudson Bridge a similar treatment for the sound-art installation Bridge Music.