Glad that helped you
I'm not sure how much you want to do with midi files....but I can tell you that a computer based 'software sequencer program' is a whole lot easier to work with, than the built in Casio 'song' sequencer. My favorite (because of price/benefit) is a program called 'Power Tracks', by PG Music.
www.pgmusic.com To use this type of program (there are many others...just as good)...you first need to have a 'computer to Casio' midi cable, like this:
http://www.musiciansfriend.com/srs7/sid=.../base_id/100498 This allows you to play on your Casio, and record it (as midi)...to your computer. You can also play a midi file on the computer, and direct the midi data...out to your Casio. This is a simple selection in the midi options, that is usually automaticly set the first time you use the software. PG Music has a very nice forum, with people willing to help you...if you get stuck on a problem. Just reading the old post on their forum, would give you lots of great help, in the general way midi files work.
The advantage of a computer based midi sequencer is that the saved file will work on most all computers (not like the Casio song file). It is very easy to work with (using the standard staff display, or a 'piano roll' display)...to edit notes...add more parts, switch instruments...and so on. The Casio midi out will record 'what you hear' on the Casio...meaning the rhythm parts, too....each to it's own 'track' in the computer sequencer program.
Another nice thing with the Power Tracks program, is that it will also record 'audio' tracks (think like a tape recorder)...where you connect the Casio 'headphone or line out jacks' to the computer's 'line in' jack on the computer's sound card. This will give you the 'actual Casio sounds' in a 'wave or mp3' type of file. You could add vocals, or other live instruments, thru a microphone. If you have a CD burner...you could make your own CDs...that you could play on a regular CD player. Lots of fun things to do!
[This message has been edited by Jim Wintringham (edited 01-06-2006).]