Ok, this is a little something i came up with on an acoustic guitar. It's pretty nice, or so i think.
Feel free to use it or something. I don't care. Now, every chord lasts a full measure.
So every time you play something it lasts 1/4 of the measure, easy.

 C                        G                         A Minor            F
----------0----------------3--------------------------0--------------------1-----------------------------
-1-----------------------------------0---------------------1-----1-------------2-------2--------------
----------0---------------------------------0--------------2-----2-----------------3-------------------
------2-------2----------------------0------------------------2------------3----------------------------
-3------------------------------2---------------------0--------------------------------------------------
----------------------------3------------------------------------------------------------------------------


 C                        G                          A Minor              F          
-0--------3---------------3---------------------------------------0----------1------------3--------
---------------------------------3-------6-------------1----------------------2------------5--------
-----------0-------------------------0-------0--------------------2---------------2-------------4--
------2-------2-----------------2-------4-------------------2---------2----------------------------
-3------------------------------------------------------0---------------------------------------------
----------------------------3--------------------------------------------------------------------------


Well, that's it. Hope you like it. Repeat it a few times, or try improvising in the middle or something.
--AtmaTribe