Oscar-winning Chinese composer Tan Dun on why ‘Hong Kong is home’, his new role as city’s cultural ambassador and upcoming ‘immersive opera’

• Known for his work on Crouching Tiger, Hidden Dragon, and his opera starring Placido Domingo, Tan is Hong Kong‘s new Ambassador for Cultural Promotion
• About to present a new opera in the city, the eccentric composer talks about why he loves Hong Kong, writing a symphony in its streets, and mushrooms