— Last month, the singer-songwriter Jimmy Buffett, who turned his unique brand of beach bum soft rock and “Margaritaville” escapism into a lifestyle and movement, died. As the music world continues to mourn the loss of a giant, Mailboat and Sun Records have teamed up to release his final album, a posthumous release titled “Equal Strain on All Parts,” recorded earlier this year. It features Paul McCartney, Emmylou Harris, Lennie Gallant, Angelique Kidjo, and the Preservation Hall Jazz Band. Buffett's light-hearted, goodtime jams live on, as evidenced on the previously released tracks, “My Gummie Just Kicked In” and “Bubbles Up.”