西北地区是民歌生长的沃土。到了甘肃和青海交界处的河溪一带，你会听到一种与其它地域迥异的民歌，古风森森，韵味淳厚。它出自农夫、牧人、脚户、筏子容之口，声调悠扬，感情真挚，动人心魄。我想，这样的歌一定是根基浑厚，源远流长的。在西北高原长山大脉的阻隔中，它就像 Northwest China is a fertile land for folk songs. At the junction of Gansu and Qinghai, you will hear a folk song very different from other regions. It comes from the farmer, shepherd, footer, raft content mouth, melodious tone, sincere feelings, moving. I think that such a song must be rich in foundation and it has a long history. In the blocking of Changshan pulse in the northwest plateau, it is like