阅读古诗，回答相关问题

                                                                                                                     楼上
                                                                                                                   葛起耕
                                                                                                楼上和人吹玉箫，数声和月伴吹宵。
                                                                                                断肠唤起江南梦，愁绝寒梅酒半销。