There are a lot of puzzles for players to solve in Blue Prince, including a puzzle hidden on Music Sheets throughout the game. Though the Music Sheet puzzle is a relatively straightforward one ...

But this story is not about Prince; it's about his late father ... about three years ago and happened upon seven pieces of sheet music by her father. "Dad gave me the music in 1978.

One of Prince's former assistants, Therese Stoulil, had the lyric sheet with the tape. They were given to her by Prince after she left her position with him in 1996.