Ahmir “Questlove” Thompson directed the Sly Stone documentary Sly Lives! (AKA The Burden of Black Genius that premiered at Sundance this year, and now he has penned a moving tribute to his subject, who died Monday at 82.

“Sly was a giant — not just for his groundbreaking work with the Family Stone, but for the radical inclusivity and deep human truths he poured into every note,” Questlove wrote on Instagram today. “His songs weren’t just about fighting injustice; they were about transforming the self to transform the world.” See his full tribute below.

Stone wrote, produced, sang and played on such revered songs as “Family Affair,”  “Everyday People” and “Thank You (Falettinme Be Mice Elf Agin)” — all of which hit No. 1 on the Billboard Hot 100 — along with “Dance to the Music,” “Hot Fun in the Summertime,” “I Want to Take You Higher” and “Stand!”

RELATED: ‘Sly Lives!’ Director Questlove On The Genius Of Sly Stone And How He Influenced Generations Of Artists — Sundance Studio

His group Sly & The Family Stone blended myriad genres including rock, funk, soul, psychedelia and more into a singular stew that thrilled record buyers and concertgoers during the group’s 1969-73 heyday and continues to move people today.

Here is Questlove’s full statement:

Sly Stone, born Sylvester Stewart, left this earth today, but the changes he sparked while here will echo forever. From the moment his music reached me in the early 1970s, it became a part of my soul. Sly was a giant — not just for his groundbreaking work with the Family Stone, but for the radical inclusivity and deep human truths he poured into every note. His songs weren’t just about fighting injustice; they were about transforming the self to transform the world. He dared to be simple in the most complex ways — using childlike joy, wordless cries, and nursery rhyme cadences to express adult truths. His work looked straight at the brightest and darkest parts of life and demanded we do the same.

Yes, Sly battled addiction. Yes, he disappeared from the spotlight. But he lived long enough to outlast many of his disciples, to feel the ripples of his genius return through hip-hop samples, documentaries, and his memoir. Still, none of that replaces the raw beauty of his original work. As I reflect on his legacy, two lines haunt me: ‘We deserve everything we get in this life’ — a line from the Sly Lives! documentary that feels like both a warning and a manifestation — and, of course, the eternal cry of ‘Everyday People’: ‘We got to live together!’ Once idealistic, now I hear it as a command. Sly’s music will likely speak to us even more now than it did then. Thank you, Sly. You will forever live.

Thankyoufaliftingushigher Sly.

Love to your family, loved ones and every human whose life you came across and effected.

All of your disciples will be geeked to receive you.

RELATED: ‘Sly Lives! (AKA The Burden Of Black Genius)’ Review: Questlove’s Passionate Doc Pays Long Overdue Homage To The Black Elvis – Sundance Film Festival

RELATED: ‘Sly Lives!’ Filmmakers Questlove And Joseph Patel On Sly Stone’s Genius And That Revealing Encounter With Maria Shriver – Contenders TV: Documentary, Unscripted & Variety