Arm’s Length at Sunshine Theatre

Arm’s Length plays the kind of emotionally precise post-hardcore that tends to hit hardest in a mid-capacity room, and Sunshine’s floor is just the right size for it. Holding Absence opens, which is not a throwaway slot: the Welsh outfit has a devoted following of their own and will likely earn the room before the headliner even loads in. Tickets are through Ticketmaster, so grab them early if the presale hasn’t already done the damage.