The French band Phoenix didn’t exactly arise from ashes, but it did ascend through Air. The synth-pop-rockers — Laurent Brancowitz, Christian Mazzalai, Thomas Mars and Deck d’Arcy — started out as a garage band, released a single on their own Ghettoblaster label, signed to Source Records and began backing labelmates Air, with whom they did a remix on that famed French outfit’s “Kelly Watch the Stars.” Phoenix’s first single, “Heatwave,” preceded the 2000 release of United. Their latest, this May’s Wolfgang Amadeus Phoenix, features the songs “1901” and “Lisztomania,” both of which the band performed on Saturday Night Live in April. Phoenix tracks have appeared in a couple of films directed by Sofia Coppola; silky-voiced lead singer Mars is the father of her child.