I had a Cowon X5 which had great sound but was quirky on every other front: software, proprietary connectors, battery. Heavy, too. But great sound.
Anyway, if you’re good at geekery you can use alternate firmware in the Clip+: Rockbox. It may have the feature you want.
Rockbox turns the Sansa into a dual-boot device–it sits alongside the Sansa firmware and you decide which one is the default.