The song is titled "Prelude to GVIDO".
The score is included in the device as a default, so you can play the song yourself.
Video: Play with GVIDO
https://www.youtube.com/watch?v=ZXNQ310cIsM
Song title: Prelude to GVIDO
Composer: Kengo Tokusashi
Pianist: Undisclosed
Release date: None