http://en.wikipedia.org/wiki/Portuguese_keyboard_layout#/med...
Great memories!
Though there may have been other ones too.
There were certainly lots of "piano" programs that used the keyboard that mostly would work with the same overlays.
A quick melody from a favorite song that I transcribed: "D4 A4 D5 F5 D5 A4 D4 A4 D5 E5 D5 A4 G3 G4 A#4 D#5 A#4 G4 G3 G4 A#4 D5 A#4 G4 A3 E4 A4 D5 A4 E4 A3 E4 A4 C#5 A4 E4"
I love to see the command line put to good use like this!