I just typed "open tuning" in the site search box and got "33 Results for: open tuning" To find the search box do not look for the word search, look for the magnifying glass looking icon top right, Favorites - History - Songs - From - Account - Logout ..magnifying glass. <-- click it
Seems like there has to be a few things you would enjoy learning out of 33 choices, offered by this site. The more you learn about it the more things will open up to you.