play with a light distortion

---------------------------------------------------------------12-14-15---14-15-14-12-14-12--------
---------------------------------------------------------12-14-------------------------------------
---------------------------------------------9-11-12--13-------------------------------------------
--------------9------------------------9--11-------------------------------------------------------
------9-10-11--------9-11b------9-10-11------------------------------------------------------------
-9-12-----------9-12------9-12---------------------------------------------------------------------

-14-15-14-12-14-12---------------------------------------------------------- 
-------------------14-12---------------------------------------------------- 
-------------------------13-12-11-9----------------------------------------- 
------------------------------------11-9------------------------------------
-----------------------------------------11-9-h10-p9------------------------
-----------------------------------------------------12-9-------------------