CHILDREN OF BODOM Acclaimed Finnish black metal quintet Children of Bodom is known for its thrashing yet melodic sound. Touring to support their latest release, Relentless Reckless Forever, guitar hero bandleader Alexi Laiho and his cohorts show great technical proficiency and hair-slinging passion as they deliver an unforgiving assault of melodic hooks, heavy guitar, the occasional wash of synth and a winking sense of humor. Warm up those neck muscles — it’s head-banging time. With Eluveitie, Revocation and Threat Signal. $17-$20. Tremont Music Hall.