As a Swedish pop auteur who rose to prominence in the late ‘00s, Lykke Li is probably sick to death of Robyn comparisons — but the only one worth making is to point out that by comparison, Li’s work has been dramatically underrated. She was working a similar musical vein at around the same time (her debut album, “Youth Novels,” was released in 2008) and listening to her past work, it’s clear that her influence has been strong, if more low-key influence. Derek Davies, the cofounder of her new label Neon Gold, has said that her music was the major inspiration to launch a record company at all. It’s been four years since her last album, and she’s apparently positioning “The Afterparty” as her last. If that’s the case, it’s an auspicious, surgical strike of a swan song.…