Can Mup take a MIDI file as input?
No. However, it is possible to write a program that reads a MIDI file and outputs a file that can be input to Mup. Two programs that do this, called “mtm” and “midi2mup” have been donated by Mup users. They are limited, and not supported by Arkkra Enterprises, but may be useful for some people. Check out the programs donated by Mup users.