Klaus Wunderlich was born to a policeman in the Saxony town of Chemnitz in 1930. As a teenager he worked for the local opera rehearsing singers but soon chose popular music over classical. By 1951 he was ready to tour West Germany, which led to a standing gig at the Tiny Cabaret Simple in Mannheim. Here he was playing winsomely in a beer hall, and the owner and patrons liked him enough to buy an expensive organ. Then Telefunken found and signed him.
Wunderlich experimented with the Hammond, as all the great pop organists have done, to discover and add to its range of extraor...