Every Saturday from 4pm to 6pm, you will find a group of children playing the violin and cello enthusiastically at a community centre in Lung Hang Estate in Tai Wai - they are the Hong Kong Symphony Society's children's string orchestra. The hard work and talent of these 15 youngsters - aged six to 13 - earned them a place in the orchestra. According to conductor Shirley Hui Yuen-kwan, every child who applies for a place in the orchestra, which was formed in 2002 with eight members, is given an audition. Since it is hard for children to concentrate for long periods of time, Ms Hui has come up with her own way of livening up practice. 'Suddenly I wave my baton at a crazy speed . . . and they try very hard to keep up. 'But then they fall behind, become unsure of what to do and mess everything up. We all end up laughing. It's a game we like to play,' she said. Children join the orchestra at various ages. When newcomers struggle, they get help from Ms Hui and fellow conductor Jeritza Wong Ming-sau. Some of the young musicians, like eight-year-old Ebly Kwok Shin-ching who has been learning the violin for two years, do not want to go home. 'It's fun to play music with others. My wish is to play my favourite song one day,' said Ebly, who is also a member of Hong Kong Children's Choir. Ariel Lai Chun-ho, 11, who has been playing the violin for five years, aspires to be a full-time musician. Two hours of rehearsal is not enough for him. 'Three hours would be better,' he said. Mugen Chan Kun-yat, 11, who plays the cello, enjoys learning from Ms Hui. 'She is funny, makes everybody laugh, has a big smile and never gets angry.' Michael Ma Man-hon, 13, who also plays in the Youth Symphony Orchestra, said the atmosphere in the string orchestra was relaxed. April Lam Tze-ching, 13, although one of the oldest in the string orchestra, does not think that her age makes her a better performer. 'They [the younger members] work very hard,' she said. Michael and April are busy preparing their double concerto for the annual concert in August, in which the Brass Band and the Youth Symphony Orchestra will perform. Former members of the string orchestra and their parents and friends will be invited to attend the performance. April said Ms Hui taught her to take a deep breath to ease her anxiety when giving a performance. Ms Hui said: 'Children make mistakes when they are nervous. 'It shows on their face. And that makes me nervous too.' She recalled an annual concert where the children were nervous and gave a less than perfect performance, winning very little applause. Ms Hui became nervous and asked the children aloud: 'Why isn't the audience clapping?' The children and the audience burst into laughter, and everyone relaxed. 'The only way to make children learn is to make them enjoy it. I hope they have fun here,' Ms Hui said.