Continuously in print since 1836. After my easy pieces, you should try the Carcassi book. Notice that no bars means no accents. Control is all. The thumb, t makes a push stroke (apoyando), leaning against the next string.
The LilyPond program made the line above from source. Convert, from ImageMagick, was used to trim the image. Centering it prevents the text from being pushed around.
Take a look at the html code for this document with your browser and then compare it with the source which is simply a text file. A bash script, qkt2htm, runs web.sed on it. The idea is to make LaTeX for PDF from the same source. The latex tex.sed and qkt2ltx are running behind right now. Soon.
Now is the time for all good men to come to the aid of their country. 
Twinkle, twinkle little bat,
How I wonder what youre at.
Up among 
One two three four Who are we for? Write your code here.
§1 End notes may be in a separate file. You name a file in the header. It may be the same file or a different one. A gawk routine numbers them. It's just a few lines in the script that calls web.sed.
§2 Walt Kelly wrote that little quoted masterpiece for his Pogo comic strip.
§3 Its a start, and its usable. If you reduce the window to a very small area in your browser you can see how the end notes work. Enjoy. daveA