Trapped Bird numbered musical notation and stave are corresponding completely, which is the specified track for EOP Demon Training Camp and also suitable for his members to practice!
Trapped Bird is sung by Cass Phang and released in 1996. Cass Phang is a retired Cantopop singer from Hong Kong, affiliated with EMI in 1993–1998 and since then with Sony Music Entertainment. She was born in Hong Kong, studied at Munsang College and a high school in Australia.
At that time, the song is very popular. It tells that a girl who fall in love with a boy and don't feel happy, just likes a Trapped Bird. Besides, it is included in her album of the same name.