A radio station in Switzerland features Donna Angelle’s music. A promoter in Brazil is anxious to work with her. Angelle’s travel log includes tours of Africa and France last year and upcoming gigs in Florida, California, Oregon and Washington. But gigs in her native southwest Louisiana are few and far between for this rare female voice in the male-dominated world of zydeco. But Angelle’s new CD, Guaranteed Lover, is starting to open some doors.

“Finally, people are starting to se...