A classic musical is bringing all the razzle-dazzle of Broadway to a Kent theatre as part of its nationwide tour. The all-singing, all-dancing A Chorus Line is currently visiting theatres all over the country, including six nights in Canterbury. The show is a peek behind the curtain at the dog-eat-dog world of the theatre and the highs and lows that come with being involved with showbiz. A Chorus Line made its US debut in 1975 and received 12 Tony Award nominations, winning nine – including Best Musical and Best Original Score – and earned the 1976 Pulitzer Prize for Drama. One year after open…