SURSUM CORDA
Our suggestions
Concatenate MIDI files
Perl software distributed under the GPL that does simple transformations on MIDI files.
1,696 lightnings, the movie
Short meteorological clip presenting the August 1st, 2006 thunderstorm in the Montreal area.
Columns filled with numbers turned into images
ECMAScript (Javascript) library, distributed under the GPL license, that creates charts from (x)HTML tables.