Nothing happens when I insert a disk I made from files collected from the internet. What is wrong?
Make sure the files on the disk are all the same format, and that the format will play on your piano. It is possible the file you downloaded is not really a MIDI file, or it may be an Apple Music file. A program like gnmidi can evaluate and repair different file formats. Make sure the floppy disk is the right type; 2DD or 2HD. Refer to the Chart: Disk and File Formats and the sections on Managing Disks and Music Files.