The UK paper quotes the former Beatle's cousin, the actress Kate Robbins, as saying that McCartney will approve the music and serve as musical director. The music is based on The Liverpool Oratorio — McCartney's first classical work, which he composed with Carl Davis in 1991 to commemorate his home city's 150th anniversary.
Robbins is also working on the adaptation, along with the writer Steve Brown.
The paper reports that McCartney's much-publicized divorce proceedings with his second wife, Heather Mills, have delayed the project.
The story will follow a character named Shanty (a fictionalized McCartney) from his childhood in Liverpool up through his first marriage to Mary Dee (standing in for McCartney's first wife, Linda) and the birth of a child. The couple attempts to balance their family life and their careers.
The paper speculates that the show could go up in Liverpool in 2008 — the city's year as the European Capital of Culture. McCartney's latest classical album, "Ecce Cor Meum" — Latin for "Behold My Heart" — was released this year. His latest pop album, "Chaos and Creation in the Backyard," was released in 2005.