zuki
I see you're interested in a filing system. The article I wrote on this link is the fastest way to get from one song to another. When the ending to one song finishes, I can already have selected the next song and start it immediately after the preceding song.
With this system it allows me to change quickly on the fly according to the crowd that's there responding to you.
http://www.psrtutorial.com/Resources/Articles/organize.html