"Oh, I just don't know where to begin," Elvis Costello swooned in the opening line to his lusciously hummable 1979 hit "Accidents Will Happen". Not strictly true. Elvis Costello has always known precisely where to begin. Knowing when to stop, that's been another kettle of worms. His latest batch of reissues being a case in point. Each has been fattened up for market with a mind-bending welter of bonus tracks, so that Get Happy!!, a 20-track tour de force in the first place, now weighs in at 50 tracks (with Trust at 31 and Punch The Clock at 39, see right).