What makes Duchess by Genesis notable?

'Duchess' became notable for its commercial success, charting within the top 40 in the UK and showcasing Genesis's shift towards accessible songwriting. The single was well-received and highlighted the band's ability to blend intricate arrangements with radio-friendly hooks. Released on May 9, 1980, 'Duchess' came during Genesis's transition into a more pop-oriented sound after the departure of Peter Gabriel. At this point, the band had established themselves as a major force in progressive rock but were beginning to explore mainstream appeal with their evolving musical style.