I really don't understand the "2016 has to stop!" stuff. People pass every day in every year and, unfortunately, will continue to do so. It's a function of life, and I for one am just grateful that I had that chance to see some of these talented people when they were at the height of their powers. It just so happens that that genre of music we tend to listen to came to a fruitful period at a time that puts these people at an age that they are in the twilight of their lives now. If you're a hard core blues fan, you could care less (well, absent basic human compassion) as your heroes passed a decade or so ago. And if you're a fan of punk and new wave, you've got another decade or so and it'll be your genre's turn.
Anyway, Greg Lake was a true favorite; I loved his voice especially. I can remember being in the third row for the '93 ELP show at the Palace in New Haven, and watching Greg sing Pirates. What an amazing experience. "Six days... off the Cuban coast..."