Robert Wyatt has very few rivals for the title of most influential percussionist in British underground music (among many other things), but he hasn’t played drum kit in over forty years, after losing the use of his legs in an accident. The release of an album on which he does just that (among many other things) is something of a significant event for many listeners, then, and there are other reasons for the great interest (and appreciation) with which ’68 has been greeted. It offers a snapshot of his musical development at a crucial moment in the growth of the more creatively rigorous side of British …