Everything from *Shugo Chara!* and *Shugo Chara!! Doki*.
FLAC files are lossless extracts from the music CDs.
MP3 files were found online at various places.
OPUS files were downloaded from YouTube using [yt-dlp](https://github.com/yt-dlp/yt-dlp).
The soundtrack of *Shugo Chara! Party!* was never released.