Do-Re-Mi Fantasy - Milon no Dokidoki Daibouken, meaning "Do-Re-Mi Fantasy - Milon's Thrilling Great Adventure," is a Japanese game that received a translation by Gaijin and RPGOne. The title suggests an action-adventure or RPG game with a whimsical, perhaps musical, theme.  The fan translation suggests a lack of official English release.  Unfortunately, the original developers remain unknown without further research.

Do-Re-Mi Fantasy - Milon no Dokidoki Daibouken (Japan) [En by Gaijin+RPGOne v1.0] (~Do-Re-Mi Fantasy - Milon's Quest)

Dirt Trax FX (USA)