High tide or low tide

E|+---8-8-8-8-5----------------------------------------------------| 
B|+-------------6-8-5--------------6/5----5/6----------------------| 
G|+-------------------5----7---7-----------------------------------| 
D|+---------------------5----7-------------------------------------| 
A|+----------------------------------------------------------------| 
E|+----------------------------------------------------------------| 

+--------------------------------------5---------------------------------|
+-6-----6-----6-----6------5-----5-------5----6----6--------6-5-3/1|-----|
+---7-----7-----7-----7------6-----6-------6/---7----7-------------------|
+-----8-----8-----8-----8\-----7-----7------------8----8----8-7-5/3|-----|
+------------------------------------------------------------------------|
+------------------------------------------------------------------------|