DUFFY Endlessly [Mercury] Twenty-six-year-old Welsh singer Duffy created a stir with her 2008 debut Rockferry, eliciting a wave of comparisons to Amy Winehouse. This fine follow-up won’t rid her of that tag entirely, but it does edge Duffy closer to a stylistic identity of her own. Half the disc embraces the retro R&B style that shaped Duffy’s debut, while the other boasts a Euro-chic pop sound more akin to Kylie Minogue. Standout moments...