Scott...
As mentioned on the other thread, most all my material in the PSR2000 is organized in Alphabetical Banks by song name...with a few folders for special categories: Christmas, Irish, Patriotic, etc.
On my PSR9000 I had a similar system where an individual song would be assigned to one or more registrations within a bank. This system necessitated a code sheet because of the 512 registrations available. So, I had an Excel chart of song titles and codes that helped me access individual songs quickly. The song Wind Beneath My Wings might be listed on my sheet as: Windbeneath 07/2&3 --- tranlating to Bank 7, Registrations 2 and 3.
On the PSR740, I used a similar system, but since only 128 registrations can be accomodated per file on a floppy, I had to create a code sheet for each file.
The systems I used for the PSR9K and 740, while effective,were cumbersome in that I felt like I needed a secretary on stage to take care of the paperwork.

Being able to easily name songs that show on the PSR2K screen has simplified my life considerably. One disk can hold hundreds of registrations...and switching disks is lightning fast--no problem.
I broke the alphabet into 5 subcategories and made a folder for each so I can zip to the next file without having to go thru numerous pages on the screen. Most often, during the final verse of a song, I will decide what I want to play next, punch up the bank. When the song is finished, all that needs to be done is hit the registration button...and I am off an running in the next tune.
There are a few other minor, mind-bending components I use...but I have found the PSR2000 the easiest of all keyboards I have ever owned to quickly navigate thru all the options with absolute minimum downtime between songs.
Eddie