The unique rock/jazz fusion sound of Steely Dan is well known to most. But their 2000 album, Two Against Nature, featured a more experimental focus than most of the band’s other releases. The tune “West of Hollywood” has a multi-minute outro which kicks the modulations into high gear starting at about 4:30.
A poster on the website Music in Practice and Theory sought insight on the complex outro: “Many, many modulations–this song must surely have set some kind of record with the sheer number of tonal-center changes during the outtro. Often, the tonal center is established only for a few measures, and the transitions happen so quickly that the listener barely notices.”