Music recorded on xrays

Before the availability of the tape recorder and during the 1950s, when vinyl was scarce, ingenious Russians began recording banned bootlegged jazz, boogie woogie and rock 'n' roll on exposed X-ray film salvaged from hospital waste bins and archives...
 
"They would cut the X-ray into a crude circle with manicure scissors and use a cigarette to burn a hole," says author Anya von Bremzen. "You'd have Elvis on the lungs, Duke Ellington on Aunt Masha's brain scan — forbidden Western music captured on the interiors of Soviet citizens."

You learn something every day.  Image and text from NPR.