Thirty years ago, Jamaican roots harmony vocal trio the Abyssinians recorded a Rastafarian hymn, “Satta Massaganna,” that quickly became recognized as a classic. Propelled by conga-drum percussion, brothers Donald and Lynford Manning and Bernard Collins cried out thanks to their lord in English and Amharic. For the next 10 years, before internal dissension split them up, the group recorded a number of albums featuring their honeyed trilling of militant and religious lyrics. Now back together after being largely absent throughout the ’80s, the group is touring in support of Declaration of Dub. This collection of some of its finest early material echoes and accentuates the tough-edged instrumental rhythms while giving an eerie, disembodied feel to the trio’s gorgeous phrasing. At 10 p.m. at the Super Bowl After Party at the Crossroads, 4103 Baltimore Ave., Bladensburg. $25. (301) 927-1056. (SK)