It uses eight instrumentalists, two with versatile electronic keyboards, including the excellent musical director, Catherine Jayes ? as in last year?s memorably energetic staging by Ian Talbot, of which this version, with new sets and different costumes, is a close cousin. Singing may not be the whole point. But even in Victorian punning rhyming rap, the patter of tiny words benefits from firmer voices. Sullivan?s sturdy thread deserves better.