Allowed format: Ogg Vorbis (if possible) or otherwise MP3.
Only one song per author is allowed.
The song's length is free, but maybe only the first 3 minutes will be played due to time pressure.
In order to participate in this competition, the authors must have available two types of WAV files of the song. The first must contain only the base rythm of the song, and the second the melody and the accompaniment (and the voices if necessary), without the base rythm. Should a work break this rule, it will be disqualified.
Versions of commercial songs are not allowed. Songs must entirely be made by their authors.