A new Free Radicals album is effectively a road map of recent headlines and controversial issues, as interpreted by some of the Bayou City’s most adventurous musicians. It’s also, without fail, a heck of a party. This freewheeling collective of musical activists has been a staple of the Houston scene for more than a generation, consistently brewing an imaginative gumbo of hard jazz, world music and less obscure genres that lately comes packaged under titles referring to refugee camps, political prisoners and the Dakota Access Pipeline. The group’s brand-new, self-released LP, Outside the Comfort Zone, follows 2015’s Freedom of Movement and is another constellation of styles oriented around the North Star of astral-jazz pioneer Sun Ra, whose “A Call for All Demons” appears late in the running order. By then, after more than an hour of music, listeners can be forgiven for thinking there’s no territory the Radicals have left unexplored, but that is simply not the case. The next album, they swear, will have lyrics.