The psychedelic years of the late 1960's had a musical stage spokesman in Hair. The authors, Gerome Ragni and James Rado, have revealed that for two years they had been putting down random ideas for a musical about the chaotic world around them, the people they knew and loved, and the people and things they hated and rebelled against, and the various other vagaries and indiscretions of the younger generation in the Vietnam war years. Whenever the authors thought of something appropriate, they jotted it down on scraps of paper…. One suspects that the authors then threw all the slips of paper high in the air, let them fall pellmell, and then proceeded to write their text by picking up the pieces of paper at random and following the chain of thought in the same sequence in which those papers were so haphazardly picked up (very much in...