“What an incredible legacy he leaves behind,” his family writes.

just keep them in your prayers.

What an incredible legacy he leaves behind."

Seals & Crofts

Seals and Crofts.Michael Ochs Archives/Getty Images

“And it will never pass this way again as his song said.

He belonged to a group that was one of a kind.”

“You and Dan finally get reunited again,” he continued.

“Tell him and your sweet momma hi for me.”

6 on the Billboard Hot 100.

The musician is survived by wife Ruby and their three children, Joshua, Sutherland, and Juliet.