One type of music I've never imagined covered by a string quartet is techno/electronic.  But here we have The world renowned Balanescu Quartet from their first album Possessed.   They cover THE ROBOTS by electronic pop pioneers Kraftwerk originally from the album Mensch Machine (The Man Machine).  On the Possessed album they also do a great job of covering AUTOBAHN, COMPUTER LOVE and THE MODEL and POCKET CALCULATOR also by Kraftwerk.