External links
| ABC-notation | A notation language readable by mere human beings as well. |
| Musical notation on Wikipedia | Browse the most powerful internet encyclopedia. |
| Audacity | Free opensource software for recording and editing sound |
| Classical archives | Huge list of downloadable classical MIDI files. |
| Musicians without borders | Building Bridges with Music |
| GhostScript | The sources for powerful PDF and postscript display and manipulation. |
| Search MIDI-files | Search the web for midi-files |