Us Foolish Virgins play a heavily Cajunized 'Midnight on the Water' (in D) as a wedding waltz, which usually goes down really well. We usually bung 'Margaret's Waltz' (in A) on the end, which rounds it off nicely. If you want something more uptempo, the marvellous Kate Martyn's by Blair Douglas is a belter, but it is better delivered with an accordion in the ensemble.