What is the fine-grained topic of the following text: The Steve Howe-led Yes features several musicians who’ve been with the band — admittedly on and off — for a very long while: drummer Alan White (45 years), bassist Billy Sherwood (7 years, hand-picked by founding bassist Chris Squire as his replacement before Squire’s 2015 death), vocalist Jon Davison (5 years) and keyboardist Geoff Downes (9 years). Only return the topic.
The lineup of the Steve Howe-led Yes band.