In the 1960s, Stanley Lunetta created a number of interactive scultures using electronic audio generators. Some of them were still running as of 2008. Some responded to elements such as heat and light to change the sounds, others had more explicit human interactive elements.
You can find more information at Lunetta’s site, including the Moosack Machines section.
(Thanks Zir)
From http://feedproxy.google.com/~r/Technoccult/~3/5WqDKl5nyJA/