"Si Tu Savais" is a French song composed by Danish-born Georges Ulmer, known for his contributions to jazz and swing music in France. Django Reinhardt recorded his interpretation of "Si Tu Savais" in 1947 with the Quintet of the Hot Club of France, featuring Stéphane Grappelli on violin. This rendition highlights Reinhardt's distinctive gypsy jazz style, blending traditional French chanson with jazz improvisation. The track has been appreciated by contemporary artists as well, with groups like Si Tu Savais, based in Seattle, drawing inspiration from Reinhardt's work to celebrate and reinterpret the music of the 1930s and 1940s jazz scene