Poster of a festival in Brussels (May 1979) in which Steve Houben & Mauve Traffic appeared. As mentioned on the poster, the band was composed of : Steve Houben (alto sax & flute), Bill Frisell (guitar), Michel Herr (Fender Rhodes), Kermit Driscoll (electric bass), Vinnie Johnson (drums). This band recorded the LP Oh boy. P.S. : Michel Herr also played with the Richard Rousselet Quartet (as mentioned on the poster) Cirque Royal, Brussels, Belgium, both concerts on May 4, 1979.