Jean Thorel conducts the trumpeter (left) and the City Chamber Orchestra of HK in Bach and Hertel's concertos, Frederick the Great's symphony, Schnittke's suite and the Vizzutti-arranged The Carnival Venus. Today, 8pm, HK City Hall, 5 Edinburgh Place, Central, HK$100-HK$250 Urbtix. He also holds two masterclasses tomorrow, 3pm, 4.40pm, HK Academy for Performing Arts, 1 Gloucester Rd, Wan Chai, free. Inquiries: 2268 7321
