For his debut record, “Angel Face,” Stephen Sanchez travels back in time with songs that you can imagine listening to in a Ford Thunderbird or watching a performance of on “The Ed Sullivan Show.” “Angel Face,” out Friday, is a concept album, about a fictional musician in the late 1950s, known as The Troubadour Sanchez, who finds fame with a hit single. The Troubadour meets and falls in love with a woman named Evangeline and ends up in a dangerous love triangle.