I can't tell what the official tracklist is for this release. The official website has this listed as 5 tracks, while other databases have this as 6 tracks.
Also, the tracklist on the website is slightly different to what everybody else has.
For M-03, the website title is "マルメロ-album mix-", and the other databases do not list the latter half which states that it's some kind of mix.
I've added both tracklists and will leave it upto you to decide which one you want in your database. If you opt for the 6-track version, there's a Romaji translation which I will link below.
On a minor note, the tracks here would later be re-released under eufonius' first album "eufonius+", bearing the catalog no. EFLA-0001.
Sources:
Code:
http://www.eufonius.net/works_type/works/
https://www.generasia.com/wiki/eufonius_(album)
https://ja.wikipedia.org/wiki/Eufonius_(%E3%82%A2%E3%83%AB%E3%83%90%E3%83%A0)
https://www.suruga-ya.jp/kaitori_detail/186117149