Yu Long (right), who is the music director of the Guangzhou Symphony Orchestra and the China Philharmonic Orchestra, conducts the Hong Kong Virtuosi and soprano Rao Lan in a concert of Mahler's Symphony No 4 in G (chamber version) and Beethoven's Septet in E-flat, Op.20. Today, 8pm, HK City Hall, Edinburgh Place, Central, HK$100-HK$150 Urbtix. Inquiries: 2268 7230
