“Let It Go” has the classic traits of an earworm: simplicity, repetitiveness and incongruity, says Kellaris. “The incongruity … stems from the ambiguity of the hook ‘let it go,’ which ...

‘Let It Go’ is one of the most popular Disney songs, it was the fifth best-selling song of 2014, and the music video has well over a billion views on YouTube. ... Jonathan Bailey played clarinet solo ...