Wang's first o-pei-la, The Female Robin Hood--Pai Hsiao Lan, included a koa-a-hi chorus and a "bitter" (kudan) character, a koa-a-hi veteran with over 50 years of experience. That character not only portrayed his mother's life, but also the lives of a generation of koa-a-hi performers.
王榮裕編寫的第一部胡撇仔戲《台灣女俠白小蘭》，劇中的歌仔戲班及苦旦一角──一位唱了 50 餘載的歌仔戲演員，正是母親謝月霞的生命寫照，也可以說是那個年代台灣歌仔戲人命運的共同寫照。