There's an interesting story behind Jimmy Reed records. In placing the phonograph needle again and again in the grooves of Jimmy Reed's records, you began to notice something curious. If one listened very carefully, there could sometimes be heard, ever so faintly in the background, a soft woman's voice murmuring in advance the next verse of the song. The story that grew up around this -- and perhaps it is true -- was that Jimmy Reed was so absorbed in the bluesy beat and the throbbing guitar riffs of his music that he simply could not remember the words of his own songs. He needed help with the lyrics, and the…