Its release was postponed by delays in the mixing process. Recorded with the intention of making 'a pop album' that would expand on the commercial success of their self-titled 1975 album, the music of Rumours is characterized by a mix of electric and acoustic instrumentation, accented rhythms, guitars, and keyboards, while its lyrics concern personal and often troubled relationships. The recording sessions took place in the aftermath of several relationship breakups among the band members in addition to heavy drug use, both of which shaped the album's direction and lyrics. Largely recorded in California in 1976, it was produced by the band with Ken Caillat and Richard Dashut. Rumours is the eleventh studio album by the British-American rock band Fleetwood Mac, released on 4 February 1977 by Warner Bros.