BelicoFest returns Nov. 8 and 9 in Phoenix with Netón Vega, Los Tucanes de Tijuana, Xavi, and more, despite visa hurdles for música mexicana stars.

That message kicked off a three-year odyssey of red tape and “retraumatizing” that continues to this day. Slavin, Ken, and Co. have fought multiple entities for multiple kinds of royalties, and most ...