You might know singer Acantha Lang via her YouTube and TikTok soul series “Standing On The Shoulders Of,” in which she honors soul singers of the past. But if you don’t, we’ll introduce you: Lang is a Robert Randolph collaborator and winner of Soul Tracks Readers’ Choice Award for New Artist of the Year, whose track “Ride This Train” is the next stop on this singer’s move from New Orleans to Harlem, and speaks to her rising stardom.