HONG KONG, Nov. 14 (Xinhua) -- More than 6,000 Hong Kong music lovers gathered at the Happy Valley Racecourse Recreation Playground on Friday night to break the world record of the largest harmonica ensemble, organizers said.

    During the break of a free open-air concert called Swire Symphony under the Stars, 6,200 audience, recruited through the event's website and social net working sites, played altogether a simple melody with harmonicas for as long as 7 minutes and 25 seconds.

    Staff from the Guinness world record organization were on site to witness the show, said the organizer, but it will take some time for the record to be confirmed.

    The previous official Guinness world record was set in Germany in 2007, involving 3,898 people.