4. Alfter Jazznacht  - 19.11.2011 Waldek Leczkowski Quartett f e a t u r i n g Yassmo’ “Bass Battle” (Yassmo’) mit Waldek Leczkowski (sopransax) Micky Kamo  (drums) Fritz Roppel (e-bass) f e a t u r i n g Yassmo’ (vocals, keyboards)