Drupal-Bibcite0<style face="normal" font="default" size="100%">Proposing an assessment framework for Cantonese operatic singing after reviewing the current practices in Hong Kong and Guangdong, China</style><style face="normal" font="default" size="100%">Proposing an assessment framework for Cantonese operatic singing after reviewing the current practices in Hong Kong and Guangdong, China</style>