Inspired silliness is a rare commodity. Happily, you’ll find a bumper crop in “Fellowship!” at El Portal. “Fellowship!” is a musical parody of “The Fellowship of the Ring.” Those who haven’t seen Peter Jackson’s film trilogy, based on Tolkien’s classic fantasy, may be left high and dry by many references. However, those with even a glancing familiarity will find much to amuse in this ripely ridiculous musical, written by Kelly Holden and Joel McCrary, who also directs. Allen Simpson, the show’s keyboardist, composed the sprightly music. Lyrics are by “everybody.” [More]