Sometimes death, as life, brings strange symmetries. Two music revolutionaries, Sly Stone and Brian Wilson, both died within two days of each other. Each was 82.

Sly Stone, who created visionary psychedelic rock, soul and pop that helped integrate popular music and captured harsh social realities under the guise of big-tent cheer; and Brian Wilson, the macher of the Beach Boys,

Based in San Francisco, Sly and the Family Stone was responsible for some of the biggest anthems of the late ’60s and early ’70s, including “Everyday People,” “Hot Fun in the Summertime,” and the double A-side release “Thank You (Falettinme Be Mice Elf Agin)” and “Everybody Is a Star.”