I'm sorry, but I cannot find any lyrics for the song "Schumann's Fantasiestücke in F major" for the chromatic harmonica. The web search results only show the sheet music and some information about the composer and the piece. Maybe you can try to create your own lyrics based on the mood and the melody of the music. You can listen to some recordings of the piece on the web[^2^] [^4^] or watch some videos of harmonica players performing it[^5^]. I hope this helps. ?