Marilyn, you are wise to give thought to how you want to organize your hard drive now. I still use the KN5000 with it's hard drive. I have found it useful to have two separate setups. I store stuff in categories like Country, Big Band, Latin and that sort of thing. I also have the stuff in the order that it came from floppy disk like Strictly Jazz, Strictly Latin etc. I have a separate area on the hard disk where I store sequences. I seldom use sequences when I play. How you use the files will depend on how you play. If you use fake sheets or other sheet music it helps to write the location of the style for each song right on the song sheet. Then, in my case, I load the song by the file location number on the hard drive. Im not sure what loading options you have with the SX3. Some of you who have been working with KN6000's at Technote need to entice Alec to this site to help with these questions.