Foolestroup, you are doing a magnificent job! Much appreciated, and I will provide whatever help I can.

(Guest was me, of course)

The MIDI ports are selected using the collections within VB (or Windows?) - nothing tricky there.

The MIDIIO32 (by MABRY) I used was the 2001 version, which can still be found online, with its source code. I see now that there is a later version, from 2004, but not offical MABRY code - I will investigate this for the next version.

Workaround for the play, of course, is to play the MIDI file using an external player! As far as I can tell, the program DOES close the file correctly after writing it, but I will check again. As you suggest, these are supposed to be temporary files, removed after playing.

The dynamic icons do NOT use the fonts, they are written by the old BASIC draw commands for lines and ellipses, I think. I will have another look at that. And you are supposed to be able to drag and drop onto the score.