If this spate of dying musicians continues they are going to have to call a moratorium on memorial sets.
I was just thinking on this, as I expect we will see more rather fewer such sad occasions. For example, Grace Slick turns 77 in October & Bob Dylan turns 75 in May (which should occasion a set for it's own sake). In June, Paul McCartney turns 74 two days before Brian Wilson does, and a day later Ray Davies turns 72. Ringo turns 76 and Mick turns 73 in July, with Keith also turning 73 before the end of the year. Clapton, Townshend & Van Morrison all turn 71 this spring.
And Chuck Berry's 90th birthday is October.