This represents the pinnacle of Steely Dan's gradual transition from rock band to their own brand of jazz-influenced white soul. Guitars were replaced by keyboards, and saxophones became more common. Walter Becker and Donald Fagen were only interested in spending time in the recording studios, while the fans pined and waited. The result set new standards in recorded excellence, and is regularly used as a hi-fi shop demonstration. The ambitious title track was deemed too difficult for radio play and only the two overtly accessible tracks `Josie' and `Peg', gave them valuable exposure.