Dr. Mui composes music for various local and overseas arts groups as wells as music festivals, including The first multimedia beach water concert in Sai Kung for the first Hong Kong Youth Festival 2018; Multimedia concert Thousand Sails for the World Hakka Conference 2017; International Mathematical Olympiad (IMO) Hong Kong Opening ceremony in Queen Elizabeth Stadium 2016; the Hong Kong Baptist University 60 anniversary Celebration Concert 2016; the Opening Ceremony of 2010 Hong Kong Week of Shanghai Expo in Shanghai Expo (simultaneous broadcasted by RTHK and Shanghai TV Station); East Asian Games Closing ceremony in Hong Kong (in Hong Kong Coliseum) 2009; the historic 2008 Olympic Torch Relay in Hong Kong in Bauhinia Square.