Before a guitar chord can become an argument, it usually begins as a private disturbance. A television flickers in a locked-down room. A former sailor sees an old enemy image placed beside a strange public gesture of peace. That is the uneasy ground beneath "War Killer," the Reetoxa and it gives the track its charge: not polish for its own sake, but a human reaction...

The headline accurately describes the song: the passion and conviction with which they sing each lyric is riveting. The American rap trio Daclikk has just released a new song called "Motion," which seeks to put a fresh spin on things while staying true to the genre. The trio also picked a deep and groundbreaking track to aid in their ascent, one whose wordplay and smart metaphors...