I wasn't able to get any of the three apps that folks suggested to create the kinds of MIDI files I wanted. That's possibly because I had the wrong idea of how to use those apps. My thought was to start with a MIDI file created by me with actual notes in it and then convert that file to the special kind that's all SysEx. But perhaps that isn't the right way to use those apps.
In the meantime, the most recent sequence of posts suggested another way: use the Genos itself to generate the MIDI file. So I tried that, and it worked fine. Here's what I did:
In Cubase, I have a MIDI track with chords in it. I play those chords into the Genos from Cubase, as described in
this thread.
Then, and this is the important part, as the Genos style is playing in response to the chords from Cubase, I record the MIDI output
onto the Genos. This is what allows the capture of all the necessary information in the recording. If I record the MIDI output directly into Cubase instead, a lot of the information is missing, and the MIDI file does not work properlu.
Once I've done that, I can copy the MIDI file to my PC and then edit it in Cubase. In particular, I can add
SPJ-01 and
SPJ-02 markers that allow me to have an intro section, a repeating middle section, and an ending section in the MIDI file. This is described on page
93 of the
Genos Reference Manual.
Then all I have to do is copy the edited MIDI file back onto the Genos and use it as a song.
I can provide more detail if anyone's interested.