Island Etude was conceived in 2004, when Chen was heading to a filming location and bumped into a student from Kun Shan University called A-tsai. A-tsai was traveling around Taiwan on his bicycle, his guitar strapped to his back.
《練習曲》的緣起，是陳懷恩 2004 年在出外景的路上，遇到一位崑山科技大學的學生阿財，他背著吉他、騎著單車要環島。