Brian Wilson of the Beach Boys is finally ready to tell his own complicated story.

The singer and songwriter will release a memoir, “I Am Brian Wilson,” on Oct. 11 via Da Capo Press, which specializes in publishing music books. Mr. Wilson worked on the memoir with Ben Greenman, who assisted Questlove and George Clinton on their autobiographies.

“My life has been written about over and over again, and that’s mostly O.K. with me,” Mr. Wilson writes in a brief excerpt. “Sometimes they’ll get it right and sometimes they’ll get it wrong. For me, when I think back across my own life, there are so many things that are painful. Sometimes I don’t like discussing them. Sometimes I don’t even like remembering them. But as I get older, the shape of that pain has changed.”

In addition to crafting indelible melodies since the 1960s, Mr. Wilson, 73, has struggled with mental health issues, extended periods of reclusiveness and drug abuse, making him one of the most speculated-about figures in modern popular music. Writing of his painful memories, Mr. Wilson added: “I’ve had a whole lifetime to take them in. Now I have a whole book to put them out there.”

A previous autobiography bearing his name, “Wouldn’t It Be Nice: My Own Story,” was released in 1991, but Mr. Wilson has since disowned that book, saying he has never read it in full. His life was most recently dramatized in the film “Love & Mercy,” starring Paul Dano and John Cusack as the singer across eras. He is currently on a world tour, marking the 50th anniversary of the Beach Boys’ “Pet Sounds” album.