Genesis at Philharmonic Hall, New York

IN A MUSICAL WORLD dominated by dueling banjos, pop boys, wimpoid artist and Soul Train, is there a place for a British group that writes epics on such trivial matters as death, money, government, sex, freedom, nature, war, and power; whose lead singer has a half dozen different voices resembling Roger Daltrey, David Bowie, Roger Chapman, and John Lennon by turns; and who have nothing whatever to do with Slade, Mott the Hoople or T. Rex? Genesis are answering that rather long question with a resoundingly succinct "You betcha", as their second American tour demonstrates a newly improved control over their incomparable theatricality and a paring down of their act to six quite literally fantastic excursions into a Lewis Carroll, sci-fi "half-world" revealed through Peter Gabriel's multiplicity as singer, mimic narrator and flautist. Peter also plays bass drum and has a rather prominent streak of baldness along his center part