Hello, I'm from Wuhan Conservatory of Music. This is from Lucia's cell phone, right? It was a fugue written by a German named Nokia in Baroque period, and this theme was taken out as a musical ringtone. I have the soundtrack of this song and put it out.

There are many cheerful tunes, such as Mozart's or Haydn's piano sonatas, wild bees flying, planetary suite-Venus Happy Messenger and so on.

Thanks for adoption