Thanks for explaining, Jon.

This is good to know in case you want o learn a new song. Save the MIDI and you can play the tune while looking at the lyrics or the sticks & dots.

BUT if you own a setup like mine, with a MIDI editor [in my case, Noteworthy Composer] and a MIDI keyboard, you can go supernova. You can download that file and change the key, change the time, type chords in, write additional parts, print it.

You can also start from scratch and be your own composer.