MYSTERY JETS Serotonin [Rough Trade] Mystery Jets singer Blaine Harrison learned about music through his father, Henry, who founded the group, spent years as a touring member and still helps the English quintet with songwriting. The elder Harrison is responsible for—or perhaps to blame for—his son’s love of freaky, frilly progressive rock, an influence the Jets mostly avoid on their third album. On highlights “Too Late to Talk” and “Flash...