Yes you can, but you need to know where the notes are on the guitar in order to use the music info from the education site. www.teoria.com is another good site, and check one of the search engines for other sites. There are some others listed in this forum, but you'll have to search through it. good luck.
If you want to learn something related to music then there are many college application essay editing services out there who will help you in your singing. I had searched it on internet, if you don't like it then there are many other talented musician you can find online easily. I want you to try this for once.