In these last weeks I have been viewing the whole of what I had known up till then only in parts. First, Godot , then Superman , and last Thursday, with TCH, South Pacific at Lincoln Center Theater at the Vivian Beaumont. I like musicals, but am not a devotee, and so was surprised to learn from the program that familiar songs like "Some Enchanted Evening," "Bali Ha'i," A Wonderful Guy," and "Happy Talk" come from South Pacific . The music, by Richard Rodgers, is unabashedly popular. The lyrics, by Oscar Hammerstein II, derive their staying power from coming close to cliche, but never quite crossing over into it. They are not clever, like Sondheim's, but they cleave to the ear. Emile de Becque, the French planter who fell in love with a young American nurse, was played by William Michals, the understudy for Paulo Szot. Michals sang with a great deal of power and warmth, but his romance with Ensign Nellie Forbush was not convincing. The diffic...