The Alloy Orchestra was a musical ensemble based in Cambridge, Massachusetts, United States, that performed its own accompaniments to silent films of the classic movie era. Performing on an unusual collection of found objects (horseshoes, plumbing pipes, and a bedpan comprising their so-called "rack of junk"), homemade instruments, accordion, clarinet, musical saw, and a sampling synthesizer, the group scored and performed with 40 feature length silent films or collections of shorts. The group is often credited with having helped revitalize the art of silent film accompaniment.