Co-wrote 他在屋頂唱歌, the title track 

Singer: Amanda Lee
Country: Hong Kong

This song was created while jamming with my guitarist friend back then ( who is now a well known music producer in Singapore -  https://en.wikipedia.org/wiki/Eric_Ng). 
About the album: https://zh.wikipedia.org/wiki/%E5%9C%A8%E5%B1%8B%E9%A0%82%E5%94%B1%E6%AD%8C

https://www.youtube.com/watch?v=RB0cMqIRTGQ