It wasn’t simply Greg Lake’s booming voice that enshrined him among the greatest rock singers of all time.It was his authority, his ability to play a supporting role in the bands he was a part of, while still maintaining an undeniable presence that placed him front and center no matter what. Although he first came to prominence on that first groundbreaking album by prog rock pioneers King Crimson, his name became forever entwined with those of the supergroup he shared with Keith Emerson and Carl Palmer—Emerson, Lake & Palmer. Lake passed away at the beginning of this month,