Bertie Plays The BluesEven down to its well set Georgian townhouses, Edinburgh is a hymn to measure and harmony. But on Scotland Street, domestic accord is in short supply. Matthew and Elspeth welcome three new arrivals, though the joys of multiple parenthood are somewhat lost due to sleep deprivation and the difficulties of telling their brood apart. Angus and Domenica are to marry, and Domenica has ambitious and disturbing plans for their living arrangements, especially